CN100460417C

CN100460417C - Nucleosides analogues, such as antivirals including inhibitors of retroviral reverse transcriptase and the DNA polymerase

Info

Publication number: CN100460417C
Application number: CNB2006100997222A
Authority: CN
Inventors: 周晓雄; N·-G·约翰松; H·瓦林
Original assignee: Medivir AB
Current assignee: Medivir AB
Priority date: 1997-08-15
Filing date: 1998-08-14
Publication date: 2009-02-11
Anticipated expiration: 2018-08-14
Also published as: CN1872869A; ZA987267B; SE9702957D0

Abstract

The invention relates to compound pointed by 5' - L- valine- 2', 3'- dideoxy- 3'- fluorine guanosine and its application in preparing medicine treating pr preventing HBV or disease infected by reverse transcriptase virus.

Description

Be used as the nucleoside analog of the antiviral drug of retroviral reversed transcriptive enzyme and archaeal dna polymerase inhibitor

The application is dividing an application of an application for a patent for invention, and the applying date of its female case is that August 14, application number in 1998 are 03157988.4, denomination of invention is " as the nucleoside analog of the antiviral drug of retroviral reversed transcriptive enzyme and archaeal dna polymerase inhibitor ".

Technical field

The present invention relates to nucleoside analog, these compounds are as comprising the retroviral reversed transcriptive enzyme of hepatitis B virus (HBV) and the antivirotic of archaeal dna polymerase inhibitor.The invention provides novel cpd, its preparation method with good drug effect parameter, the pharmaceutical composition that contains these compounds and suppress to comprise the virus of HBV and HIV and the method for knurl with their.

Background of invention

That International Patent Application WO 88/00050 has been described is a series of 3 '-the fluorine nucleosides, comprise compound 2 ', 3 '-two deoxidations-3 '-fluorine guanosine (FLG) and 3 '-antiretroviral of fluorothymidine (FLT) and the activity of anti--HBV.As the anti-HIV agent, back one compound has been carried out clinical identification, although its antiviral activity and pharmacokinetics are good, it has shown beyond thought toxicity (Flexner etc., J Inf Dis 170 (6) 1394-403 (1994)).Last compound F 17-hydroxy-corticosterone LG has good activity external, and is very low but the inventor has detected its bioavailability, about 4%, causes this compound purposes in vivo still to be limited in the animal model of intraperitoneal or subcutaneous medication so far.

United States Patent (USP) 4,963,662 disclose a series of 3 '-fluorine ucleosides and corresponding triphosphate compound, and specifically described 5 of FLT '-O-palmityl derivative, but do not reported any improvement of bioavailability.International Patent Application WO 93 13778 has been described the FLG derivative of modification on 6 of matrix, particularly uses positive propoxy, cyclobutoxy group, cyclopropyl amino, piperidyl or pyrrolidyl modification.International patent application 93 14103 has been described the FLG derivative that the oxygen on 6 of guanines is replaced by amino, ether, halogen or sulphonate.

The invention summary

One aspect of the present invention provides the compound shown in the formula I:

Wherein:

R ₁Be selected from hydroxyl, amino or carboxyl; Optional esterification thereon/amidated saturated or undersaturated C ₄-C ₂₂, optional lipid acid or the alcohol that replaces, or aliphatic L-amino acid;

R ₂Be the amino acid whose residue of aliphatic L-;

L ₁Be the trifunctional linking group;

L ₂For not existing or the difunctionality linking group;

And pharmacy acceptable salt.

The present invention also provides pharmaceutical composition and pharmaceutically acceptable carrier or the thinner that contains formula I compound or its salt.The present invention provides the method that suppresses HBV and retrovirus such as HIV on the other hand, comprise formula I compound or salt are contacted with retrovirus or HBV, for example compound or the salt with significant quantity injects the philtrum that infected by retrovirus or HBV. and the present invention also provides the purposes of formula I compound or salt, for example is used to prepare the medicine of treatment retrovirus or HBV infection.

In the illness that treatment is caused by retrovirus such as HIV or HBV, formula I compound or salt preferred every day with 50～1500 milligrams amount once, twice or three administrations, preferred every day two to three times is with 100～700 milligrams amount administration.The serum-concentration of wishing active metabolite reaches 0.01～100 mcg/ml, preferred 0.1～5 mcg/ml.

Work as R ₁Be fatty acid residue, preferably have even number of carbon atoms altogether, advantageously caprinoyl (C ₁₀), lauroyl (C ₁₂), mnyristoyl (C ₁₄), palmityl (C ₁₆),

Stearyl (C ₁₈), eicosane acyl (C ₂₀) or mountain Yu acyl (C ₂₂).Lipid acid preferably has 10～22 carbon atoms altogether, more preferably 16～20 carbon atoms, particularly 18 carbon atoms.Lipid acid can be for unsaturated and have one to three a two key, particularly a two key.Unsaturated fatty acids preferably belongs to n-3 or n-6 series. unsaturated R commonly used ₁Group comprises derived from monobasic unsaturated carboxylic acid Oleomyristic acid, Semen Myristicae elaidic acid (myristelaidic), Zoomeric acid, palm elaidic acid (palmiteladic), n6-octadecenoic acid, oleic acid, elaidic acid, gandoic, erucic acid, brassidic acid or derived from polybasic unsaturated fatty acid such as linolic acid, gamma-linolenic acid, arachidonic acid and alpha-linolenic acid.But, when these compounds will have stronger stability and working life, be preferably saturated as the R1 of lipid acid.

R as Fatty Alcohol(C12-C14 and C12-C18) ₁Residue is preferably corresponding to above-mentioned lipid acid.Fatty Alcohol(C12-C14 and C12-C18) also can contain short chain alcohol, as the residue of methyl alcohol, ethanol or propyl alcohol.

R ₁During for saturated or unsaturated fatty acids or alcohol, can choose wantonly by five identical or different substituting groups replacements at the most, substituting group is selected from hydroxyl, C respectively ₁-C ₆Alkyl, C ₁-C ₆Alkoxy C ₁-C ₆Alkoxy C ₁-C ₆Alkyl, C ₁-C ₆Alkyl acyl, amino, halogen, cyano group, azido-, oxo, sulfydryl and nitro etc.

Be suitable for R ₂And R ₁If (have R ₁Words) aliphatic amino acid comprise L-L-Ala, L-leucine, L-Isoleucine, most preferably L-Xie Ansuan. for ease of synthetic, preferred R ₂And R ₁Be the aliphatic amino acid residue, be preferably identical residue.

First linking group L ₁The trifunctional of being explained is meant that linking group has at least three functional groups, comprises at least two derived from corresponding hydroxyl, amino or carboxyl.Wherein amino and hydroxy functional group is to be used for and R ₁And R ₂Carboxyl functional group esterification/amidation; Carboxyl functional group in the linking group is to be used for and R ₂Middle free alpha-amino group, or depend on the circumstances and R ₁Middle free alpha-amino group amidation; Or R ₁During for Fatty Alcohol(C12-C14 and C12-C18), with R ₁Esterification takes place.Work as R ₁When itself being defined as hydroxyl, amino or carboxyl, wherein hydroxyl is optimum among the three, and it is exactly this hydroxyl, amino or carboxyl that the base of trifunctional connection is at this moment gone up certain functional group.

Trifunctional connects base and also contains the 3rd functional group, this functional group and second optional linking group L that below will describe in detail ₂Link to each other or 5 ' position of parent nucleosides on hydroxyl continuous, as 2 ', 3 '-two deoxidations-3 '-the fluorine guanosine.Optional linking group L is depended in the 3rd suitable functional group ₂(if present) go up the character of functional group that links to each other, and can comprise amino, hydroxyl, carbonyl, alkylsulfonyl, phosphoryl, phosphono, formamyl etc.If there is not L ₂, first linking group L ₁On the 3rd functional group generally contain can with 5 of nucleoside analog '-carboxyl of O group esterification.

With R ₁And R ₂The functional group that the trifunctional that links to each other connects on the base is preferably hydroxy functional group, and this connection is and R ₁Lipid acid (if words) and R ₂The ester of carboxyl functional group connect. further preferred embodiment is to connect on the base free hydroxyl to be arranged as R ₁, and one and R ₂The hydroxy functional group of carboxyl esterification. another embodiment is to connect the carboxyl R that contains (optional protected) on the base ₁, and one and R ₂The hydroxy functional group of carboxyl esterification.

Useful trifunctional L ₁Group particularly can be directly and the group of nucleosides esterification, comprises the connection base shown in formula IIa or the IIb:

Wherein, A is defined as at the hydroxyl and the R that are connected on the base with A ' ₁Or R ₂Carboxyl between different ester connect, or be carboxyl and Fatty Alcohol(C12-C14 and C12-C18) R on the connection base ₁Hydroxyl between ester connect, or be connect on the base amino and at R ₁Or R ₂Carboxyl between acid amides connect, or be to connect basic carboxyl and R ₁Or R ₂Amino between acid amides connect, or work as R ₁During originally as free hydroxyl, amino or carboxyl, one of A and A ' as above define, and another is hydroxyl, amino or carboxyl,

Rx is H or C ₁-C ₃Alkyl,

T be key ,-O-or-NH-;

Alk for do not exist, C ₁-C ₄Alkyl or C ₂-C ₄Alkenyl, optional is substituted as mentioned above;

And

M and n are 0,1 or 2 independently.

In the embodiment preferred of the present invention aspect this, R ₁Or R ₂Group respectively with the leftmost different functional hydroxy esterification of formula IIa (by A and A '), simultaneously the carbonyl moiety on the right is optional by second linking group L ₂, with 5 of nucleosides '-esterification of O-base.

L ₁Group also can contain the connection base shown in the formula IIb:

Wherein Ar is saturated or unsaturated, the monocyclic carbocyclic ring of preferred 5 or 6 annular atomses or heterocycle; A, A ', T, Alk, m and n as above define.

Among the formula IIb, Ar is preferably aryl, as pyridine or be in particular phenyl, wherein is with R as aryl moiety ₁And R ₂Arm, with respect to the remainder that connects base be respectively to and adjacent, and adjacent, all be adjacent or preferably to and, be to or be between.

Among formula IIa and the IIb, the combination of following m, n and Alk is favourable:

m n Alk

10 methylene radical

10 ethylene

11 do not exist

11 methylene radical

11 ethylene

11 propylene

12 do not exist

12 methylene radical

11 ethylene

11 propylene

Because R ₁And R ₂Has different structures, clearly many L ₁Group, the particularly group of formula IIa will be defined as chiral structure. therefore the present invention includes all enantiomorphs, as raceme or 80% mapping is pure, preferred the pure compound formulation of 95% mapping.

Particularly preferred trifunctional connects base and contains the glycerol derivative shown in the formula IIc

Wherein, A is the acyl residue of hydrogen, aliphatic L-amino acid ester or the acyl residue of fatty acid ester, and A ' is the acyl residue of aliphatic amino acid residue, and D is saturated or unsaturated C ₂-C ₆Di-carboxylic acid residue.Trifunctional shown in the formula IIc is connected in vivo hydrolysis or decomposes with the constant compound of release performance such as glycerine, L-amino acid, lipid acid (if words) and di-carboxylic acid, each is usually all in health metabolism and/or drain .A and A ' preferably is the aliphatic amino acid residue safely, most preferably be identical residue, particularly the residue of L-Xie Ansuan or L-Isoleucine.

When the di-carboxylic acid of formula IIc derivative part during, can glycerine partly be defined as trifunctional connection L directly with 5 ' hydroxy functional group (or equivalent) esterification of nucleosides with resolving ₁, di-carboxylic acid partly is defined as two senses and connects L ₂

Particularly preferred di-carboxylic acid residue comprises from deutero-such as oxalic acid, propanedioic acid, tartronic acid, succsinic acid, toxilic acid, fumaric acid, oxysuccinic acid, tartrate, pentanedioic acid, propene dicarboxylic acid, citraconic acid, methylene-succinic acid, ethylidene propanedioic acid, methylfumaric acid, hexanodioic acid, allyl malonic acid, propylidene propanedioic acid, hydrogenation muconic acid, pyrocinchonic acid and muconic acids.Di-carboxylic acid residue can be chosen wantonly and be substituted, for example by above-mentioned about lipid acid R ₁Listed substituting group replaces.Hydroxyl substituent can be further and another L-amino acid or fatty acid residue esterification.

Some above-mentioned di-carboxylic acid itself may be defined as trifunctional and connect base.For example, the di-carboxylic acid of hydroxyl replacement such as tartrate or toxilic acid provide many configurations within the scope of the present invention.With tartrate is example, carboxyl functional group can with 5 of nucleosides '-the hydroxy functional group esterification (optional is connected basic L by difunctionality ₂).Hydroxy functional group can with R ₂And R ₁Carboxyls different on lipid acid or the amino acid carry out esterification, and remaining carboxyl of while can be free or optional protected, for example use pharmaceutically acceptable ester commonly used such as methyl esters or ethyl ester to protect.Optionally the protection of free carboxy acid functional group is and R ₁The ester that Fatty Alcohol(C12-C14 and C12-C18) forms, this ester contain one or two and R ₂The hydroxy functional group of esterification:

Connection base favourable in the above-mentioned tartrate series is described suc as formula IIe usually:

And R wherein ₁And R ₂The isomer that exchanges, wherein R ₁And R ₂As implied above, p, q and r are respectively 0～5, and preferred 0 or 1, and Ry is free acid, R ₁Ester or pharmaceutically acceptable carboxyl-protecting group commonly used are as methyl esters, benzyl ester or particularly ethyl ester.

The favourable connection of toxilic acid series has formula IIf:

Wherein, Ry, p, q and R ₂As above definition, preferred p and q are zero.

The preferred compound in this aspect of the present invention comprises:

5 '-O-[3-methoxycarbonyl-2-valyl oxygen base-propionyl]-2 ', 3 '-two deoxidations-3 '-the fluorine guanosine,

5 '-O-[3-benzyloxycarbonyl-2-valyl oxygen base-propionyl]-2 ', 3 '-two deoxidations-3 '-the fluorine guanosine,

5 '-O-[3-methoxycarbonyl-2-isoleucyl-oxygen base-propionyl]-2 ', 3 '-two deoxidations-3 '-the fluorine guanosine,

5 '-O-[3-benzyloxycarbonyl-2-isoleucyl-oxygen base-propionyl]-2 ', 3 '-two deoxidations-3 '-fluorine crow glycosides,

5 '-O-[4-methoxycarbonyl-2,3-two valyl oxygen base-butyryl]-2 ', 3 '-two deoxidations-3 '-the fluorine guanosine,

5 '-O-[4-benzyloxycarbonyl-2,3-two valyl oxygen base-butyryl]-2 ', 3 '-two deoxidations-3 '-the fluorine guanosine,

5 '-O-[4-methoxycarbonyl-2,3-two isoleucyl-oxygen base-butyryl]-2 ', 3 '-two deoxidations-3 '-the fluorine guanosine,

5 '-O-[4-benzyloxycarbonyl-2,3-two isoleucyl-oxygen base-butyryl]-2 ', 3 '-two deoxidations-3 '-the fluorine guanosine,

Especially preferably derived from L-toxilic acid and the tartaric compound of L-; And the derivative that correspondingly constitutes pharmaceutically acceptable ester commonly used endways on the carboxyl functional group.

Particularly advantageous compound comprises:

5 '-O-[3-ethoxy carbonyl-2-valyl oxygen base-propionyl]-2 ', 3 '-two deoxidations-3 '-the fluorine guanosine,

5 '-O-[3-ethoxy carbonyl-2-isoleucyl-oxygen base-propionyl]-2 ', 3 '-two deoxidations-3 '-the fluorine guanosine,

5 '-O-[4-ethoxy carbonyl-2,3-two valyl oxygen base-butyryl]-2 ', 3 '-two deoxidations-3 '-the fluorine guanosine,

5 '-O-[4-ethoxy carbonyl-2,3-two isoleucyl-oxygen base-butyryl]-2 ', 3 '-two deoxidations-3 '-the fluorine guanosine,

Particularly derived from L-toxilic acid and the tartaric isomer of L-.

In another related fields of the present invention, R ₁And R ₂One can be deleted.

This aspect exemplary compounds of the present invention comprises formula Ia:

Wherein Alk is the optional C that replaces ₁-C ₄Alkyl or C ₂-C ₄Alkenyl, R ₂Be above-mentioned R ₁And R ₂The amino acid whose ester residue of aliphatic L-of definition or the ester residue of lipid acid.Connection base in this aspect of the present invention can prepare easily from Alpha-hydroxy ω-carboxylic acid such as carbonic acid, oxyacetic acid, ethylene-lactic acid, hydroxybutyric acid, hydroxyl valeric acid or hydroxycaproic acid.

The typical compound of formula Ia comprises:

2 ', 3 '-two deoxidations-3 '-fluoro-5-O-[3-(L-valyl oxygen base)-propionyl] guanosine,

2 ', 3 '-two deoxidations-3 '-fluoro-5 '-O-[5-(L-valyl oxygen base)-valeryl] guanosine,

2 ', 3 '-two deoxidations-3 '-fluoro-5 '-O-[6-(L-valyl oxygen base)-hexanoyl] guanosine,

2 ', 3 '-two deoxidations-3 '-fluoro-5-O-[3-(L-isoleucyl-oxygen base)-propionyl] guanosine,

2 ', 3 '-two deoxidations-3 '-fluoro-5 '-O-[5-(L-isoleucyl-oxygen base)-valeryl] guanosine,

2 ', 3 '-two deoxidations-3 '-fluoro-5 '-O-[6-(L-isoleucyl-oxygen base)-hexanoyl] guanosine,

And pharmacy acceptable salt.

Particularly advantageous formula Ia compound comprises:

2 ', 3 '-two deoxidations-3 '-fluoro-5 '-O-[4-(L-valyl oxygen base)-butyryl] guanosine and

2 ', 3 '-two deoxidations-3 '-fluoro-5-O-[4-(L-isoleucyl-oxygen base)-butyryl] guanosine, and pharmacy acceptable salt.R in these compounds in vivo ₂Active end group is left over down in group hydrolysis and removing, and this end group can cyclisation and promoted effective release of parent nucleosides.

In the one side that the present invention relates to, fatty acid residue R ₁Itself can be with connecting base, with R ₂Aliphatic L-amino-acid residue be connected in mutually on amino, hydroxyl or the carboxyl of fatty acid alkyl chain and carry out esterification/amidation, for example on β carbon.In this embodiment, R ₁Lipid acid directly and nucleosides 5 '-hydroxyl (or equivalent) esterification, this nucleosides has esterification/amidated R usually ₂Group.Functionalized lipid acid (carboxyl/hydroxyl/amido functional group is suitably protected) also at first esterification to nucleosides, then with R ₂Deprotection before the coupling. have structure shown in the formula IId according to the connection base in this aspect embodiment preferred:

R wherein ₂Be aliphatic L-amino-acid residue, p is 0,1 or 2-20 (optional comprise two keys), and q is 0-5, is preferably 0.Exemplary compounds comprises:

2 ', 3 '-two deoxidations-3 '-5-O-[2-(L-valyl oxygen base)-butyryl] guanosine,

2 ', 3 '-two deoxidations-3 '-5-O-[2-(L-valyl oxygen base)-hexanoyl] guanosine,

2 ', 3 '-two deoxidations-3 '-5-O-[2-(L-valyl oxygen base)-decoyl] guanosine,

2 ', 3 '-two deoxidations-3 '-5-O-[2-(L-valyl oxygen base)-caprinoyl] guanosine,

2 ', 3 '-two deoxidations-3 '-5-O-[2-(L-valyl oxygen base)-dodecanoyl] guanosine,

2 ', 3 '-two deoxidations-3 '-5-O-[2-(L-valyl oxygen base)-myristoyl] guanosine,

2 ', 3 '-two deoxidations-3 '-5-O-[2-(L-valyl oxygen base)-hexadecanoyl] guanosine,

2 ', 3 '-two deoxidations-3 '-5-O-[2-(L-valyl oxygen base)-stearyl] guanosine,

2 ', 3 '-two deoxidations-3 '-5-O-[2-(L-valyl oxygen base)-eicosane acyl] guanosine,

2 ', 3 '-two deoxidations-3 '-5-O-[2-(L-valyl oxygen base)-docosane acyl] guanosine,

2 ', 3 '-two deoxidations-3 '-5-O-[2-(L-isoleucyl-oxygen base)-butyryl] guanosine,

2 ', 3 '-two deoxidations-3 '-5-O-[2-(L-isoleucyl-oxygen base)-hexanoyl] guanosine,

2 ', 3 '-two deoxidations-3 '-5-O-[2-(L-isoleucyl-oxygen base)-decoyl] guanosine,

2 ', 3 '-two deoxidations-3 '-5-O-[2-(L-isoleucyl-oxygen base)-caprinoyl] guanosine,

2 ', 3 '-two deoxidations-3 '-5-O-[2-(L-isoleucyl-oxygen base)-dodecanoyl] guanosine,

2 ', 3 '-two deoxidations-3 '-5-O-[2-(L-isoleucyl-oxygen base)-myristoyl] guanosine,

2 ', 3 '-two deoxidations-3 '-5-O-[2-(L-isoleucyl-oxygen base)-hexadecanoyl] guanosine,

2 ', 3 '-two deoxidations-3 '-5-O-[2-(L-isoleucyl-oxygen base)-stearyl] guanosine,

2 ', 3 '-two deoxidations-3 '-5-O-[2-(L-isoleucyl-oxygen base)-eicosane acyl] guanosine,

2 ', 3 '-two deoxidations-3 '-5-O-[2-(L-isoleucyl-oxygen base)-docosane acyl] guanosine,

And corresponding n-3 and the unsaturated analogue of n-6 monobasic, as 6 or 9-octadecylene acyl derivative.

In formula IId, p and q are preferably 0, therefore are defined as lactic acid derivatives, preferred L-lactic acid derivatives, as

2 ', 3 '-two deoxidations-3 '-fluoro-5-O-[2-(L-valyl oxygen base)-propionyl] guanosine; With

2 ', 3 '-two deoxidations-3 '-fluoro-5-O-[2-(L-isoleucyl-oxygen base)-propionyl] guanosine and pharmacy acceptable salt thereof, its degradation production, lactic acid and amino acid are on the physiology can fine acceptance.

At the second linking group L ₂The difunctionality of being explained is meant the connection base with two functional groups, makes it at first linking group L ₁And nucleosides 5 '-the O-group between as transcribed spacer or bridge.Ren Xuan group L for example ₂Can contain the connection base shown in the formula III a:

R wherein ₄And R ₄' be hydrogen or C ₁-C ₄Alkyl. among the formula III a, R ₄Preferred hydrogen, methyl, ethyl or sec.-propyl, R ₄' be hydrogen. because multiple ucleosides before it suppresses varial polymerases, must at first pass through the cellular enzymes phosphorylated as the FLG parent compound, the connection base of formula III a is favourable.Elementary or the hydrolysis thereafter of The compounds of this invention can discharge monobasic phosphorylated nucleosides in vivo, and it can be converted into two and triphosphate rapidly.

Optional difunctionality linking group L ₂Also can contain the structure shown in the formula III b:

R wherein ₄And R ₄' be respectively H or C ₁-C ₄Alkyl.

Another group that difunctionality connects base has the structure shown in the formula III c:

As mentioned above, the group of preferred difunctionality connection contains alpha, omega-dicarboxylic acid C ₂-C ₆Alkyl derivative, as succsinic acid, they be optional replace (for example with the above-mentioned lipid acid R of being ₁The substituting group of definition) and/or for optional monobasic or polynary unsaturated, monounsaturated as n-3 or n-6.This type of preferred group as mentioned above.

Although above-mentioned disclosed content concentrates on and di-carboxylic acid L ₂The glycerine L that group links to each other ₁Group is understood that, a large amount of trifunctionals connects base and is applicable to and dicarboxylic acid L ₂Group together, for example above-mentioned do not have the formula IIa of low order end carbonyl and a structure shown in the IIb.

The present invention also comprises the R that contains FLG prodrug commonly used ₁(R ₂) L ₁L ₂The dual prodrug of-derivative, this prodrug commonly used can discharge FLG in vivo, as the prodrug derivant on 2 and 6 of FLG guanosine matrix.The example of this FLG prodrug commonly used comprises the compound shown in the formula IV:

R wherein ₁, R ₂, L ₁And L ₂As above definition; With

R ₃Be H, N ₃, NH ₂Or OH or its pharmaceutically acceptable ether or ester; With

R ₃' be fragrant key or hydrogen.

R ₃In possible pharmaceutically acceptable ester comprise above-mentioned R ₁Relevant lipid acid is as stearyl ester or oleoyl ester etc. or shorter ester, as acetonyl ester or butyryl ester. and other possible ester comprises R ₂Amino acid derivative or phosphoric acid ester, as Monophosphate. ester also can comprise corresponding lipid acid or alkyl aryl carbonate, carbamate or sulphonate.

R ₃In suitable pharmaceutically acceptable ether comprise C ₁-C ₆Alkyl, cycloalkyl, C ₆-C ₁₂Alkylaryl such as benzyl or picolyl, any of these ether can be by above-mentioned R ₁Described substituting group replaces.Favourable ether is included in the ether of mentioning among the above-mentioned WO93 13778, as positive propoxy, cyclobutoxy group, cyclopropyl amino, piperidino-(1-position only) or pyrrolidyl etc.

The present invention mainly describes with reference to monohydroxy nucleosides FLG, and still, corresponding obviously derivative can be from other monohydroxy nucleoside analog preparation, and particularly this hydroxyl is corresponding to the situation of 5 ' hydroxy functional group of nucleosides.Therefore another aspect of the present invention provides formula Ic compound:

Wherein, R ₁, R ₂, L ₁And L ₂As above definition,-O-nuc is the monohydroxy residue of band D-or L-nucleoside analog. the typical ucleosides of this respect comprises acyclic nucleotide analogue such as acycloguanosine according to the present invention, with ring nucleoside analog such as ddI (2 ', 3 '-dideoxyinosine), ddC (2 ', 3 '-dideoxycytidine), d4T (2 ', 3 '-videx), FTC, lamivudine, 2 '-deoxidation-3 '-sulfo-cytidine (-) enantiomorph (3TC), 1592U89 (4-[2-amino-6-(cyclopropyl amino)-9H-purine-9-yl]-2-cyclopentenes-1-methyl alcohol), AZT (Zidovodine), DAPD (D-2,6-diaminopurine dioxolane), F-ddA etc., each all is that the nucleosides field is known.A large amount of monohydroxy L-ucleosides are in the development, and the present invention has also found the purposes of these compounds.The compound of this respect of the present invention will have the shown corresponding uses of parent compound, and for example herpesvirus infection is corresponding to Acyclovir derivatives, and HIV is corresponding to ddI, videx, ddC, lamivudine, AZT﹠amp; 1592U89, HBV is corresponding to lamivudine, FTC etc.

The derivative of the monohydroxy ucleosides shown in the formula Ic ' is contained in favourable formula Ic subgroup:

Wherein A, A ', Alk and O-nuc as above define.Above-mentioned formula Ic ' has described A and A ' on 1 and 3 of glycerine part, and L ₂2 compound at glycerine.Possible isomer is A and A ' respectively on glycerine 1 and 2 or on 2 and 3, L ₂Be respectively on 3 or 2.

This respect exemplary compounds of the present invention comprises:

4 '-O-[3-((2,3-two-L-valyl oxygen base)-1-third oxygen carbonyl) propionyl] acycloguanosine (acyclovir),

4 '-O-[3-((2-hydroxyl-3-L-valyl oxygen base)-1-third oxygen carbonyl) propionyl] acycloguanosine,

4 '-O-[3-((2,3-two-L-isoleucyl-oxygen base)-1-third oxygen carbonyl) propionyl] acycloguanosine,

4 '-O-[3-((2-hydroxyl-3-L-isoleucyl-oxygen base)-1-third oxygen carbonyl) propionyl] acycloguanosine,

4 '-O-[3-((1,3-two-L-valyl oxygen base)-2-third oxygen carbonyl) propionyl] acycloguanosine,

4 '-O-[3-((1-hydroxyl-3-L-valyl oxygen base)-2-third oxygen carbonyl) propionyl] acycloguanosine,

4 '-O-[3-((1,3-two-L-isoleucyl-oxygen base)-2-third oxygen carbonyl) propionyl] acycloguanosine,

4 '-O-[3-((1-hydroxyl-3-L-isoleucyl-oxygen base)-2-third oxygen carbonyl) propionyl] acycloguanosine,

5 '-O-[3-((2,3-two-L-valyl oxygen base)-1-third oxygen carbonyl) propionyl] lamivudine,

5 '-O-[3-((2-hydroxyl-3-L-valyl oxygen base)-1-third oxygen carbonyl) propionyl] lamivudine,

5 '-O-[3-((2,3-two-L-isoleucyl-oxygen base)-1-third oxygen carbonyl) propionyl] lamivudine,

5 '-O-[3-((2-hydroxyl-3-L-isoleucyl-oxygen base)-1-third oxygen carbonyl) propionyl] lamivudine,

5 '-O-[3-((1,3-two-L-valyl oxygen base)-2-third oxygen carbonyl) propionyl] lamivudine,

5 '-O-[3-((1-hydroxyl-3-L-valyl oxygen base)-2-third oxygen carbonyl) propionyl] lamivudine,

5 '-O-[3-((1,3-two-L-isoleucyl-oxygen base)-2-third oxygen carbonyl) propionyl] lamivudine,

5 '-O-[3-((1-hydroxyl-3-L-isoleucyl-oxygen base)-2-third oxygen carbonyl) propionyl] lamivudine,

5 '-O-[3-((2,3-two-L-valyl oxygen base)-1-third oxygen carbonyl) propionyl] DAPD,

5 '-O-[3-((2-hydroxyl-3-L-valyl oxygen base)-1-third oxygen carbonyl) propionyl] DAPD,

5 '-O-[3-((2,3-two-L-isoleucyl-oxygen base)-1-third oxygen carbonyl) propionyl] DAPD,

5 '-O-[3-((1,3-two-L-valyl oxygen base)-2-third oxygen carbonyl) propionyl] DAPD,

5 '-O-[3-((1 hydroxyl-3-L-valyl oxygen base)-2-third oxygen carbonyl) propionyl] DAPD,

5 '-O-[3-((1,3-two-L-isoleucyl-oxygen base)-2-third oxygen carbonyl) propionyl] DAPD,

5 '-O-[3-((1-hydroxyl-3-L-isoleucyl-oxygen base)-2-third oxygen carbonyl) propionyl] DAPD,

5 '-O-[3-((2,3-two-L-valyl oxygen base)-1-third oxygen carbonyl) propionyl]-2 ', 3 '-dideoxyinosine,

5 '-O-[3-((2-hydroxyl-3-L-valyl oxygen base)-1-third oxygen carbonyl) propionyl]-2 ', 3 '-dideoxyinosine,

5 '-O-[3-((2,3-two-L-isoleucyl-oxygen base)-1-third oxygen carbonyl) propionyl]-2 ', 3 '-dideoxyinosine,

5 '-O-[3-((2-hydroxyl-3-L-isoleucyl-oxygen base)-1-third oxygen carbonyl) propionyl]-2 ', 3 '-dideoxyinosine,

5 '-O-[3-((1,3-two-L-valyl oxygen base)-2-third oxygen carbonyl) propionyl]-2 ', 3 '-dideoxyinosine,

5 '-O-[3-((1-hydroxyl-3-L-valyl oxygen base)-2-third oxygen carbonyl) propionyl]-2 ', 3 '-dideoxyinosine,

5 '-O-[3-((1,3-two-L-isoleucyl-oxygen base)-2-third oxygen carbonyl) propionyl]-2 ', 3 '-dideoxyinosine,

5 '-O-[3-((1-hydroxyl-3-L-isoleucyl-oxygen base)-2-third oxygen carbonyl) propionyl]-2 ', 3 '-dideoxyinosine,

5 '-O-[3-((2,3-two-L-isoleucyl-oxygen base)-1-third oxygen carbonyl) propionyl] videx,

5 '-O-[3-((2-hydroxyl-3-L-isoleucyl-oxygen base)-1-third oxygen carbonyl) propionyl] videx,

5 '-O-[3-((1,3-two-L-valyl oxygen base)-2-third oxygen carbonyl) propionyl] videx,

5 '-O-[3-((1-hydroxyl-3-L-valyl oxygen base)-2-third oxygen carbonyl) propionyl] videx,

5 '-O-[3-((1,3-two-L-isoleucyl-oxygen base)-2-third oxygen carbonyl) propionyl] videx,

5 '-O-[3-((1-hydroxyl-3-L-isoleucyl-oxygen base)-1-third oxygen carbonyl) propionyl] videx,

4-[2-amino-6-(cyclopropyl amino)-9H-purine-9-yl]-2-cyclopentenes-corresponding derivative of 1-methyl alcohol and pharmacy acceptable salt thereof.

The subclass of this respect compound of the present invention also can contain the compound shown in the formula Id:

R wherein ₂With Alk suc as formula defined among the Ia, O-nuc as above defines.

Formula Id exemplary compounds comprises:

4 '-O-[4-(L-valyl oxygen base)-propionyl] acycloguanosine,

4 '-O-[5-(L-valyl oxygen base)-valeryl] acycloguanosine,

4 '-O-[6-(L-valyl oxygen base)-hexanoyl] acycloguanosine,

4 '-O-[4-(L-isoleucyl-oxygen base)-propionyl] acycloguanosine,

4 '-O-[5-(L-isoleucyl-oxygen base)-valeryl] acycloguanosine,

4 '-O-[6-(L-isoleucyl-oxygen base)-hexanoyl] acycloguanosine,

5 '-O-[4-(L-valyl oxygen base)-propionyl] ddI,

5 '-O-[5-(L-valyl oxygen base)-valeryl] ddI,

5 '-O-[6-(L-valyl oxygen base)-hexanoyl] ddI,

5 '-O-[4-(L-isoleucyl-oxygen base)-propionyl] ddI,

5 '-O-[5-(L-isoleucyl-oxygen base)-valeryl] ddI,

5 '-O-[6-(L-isoleucyl-oxygen base)-hexanoyl] ddI,

5 '-O-[4-(L-valyl oxygen base)-propionyl] videx,

5 '-O-[5-(L-valyl oxygen base)-valeryl] videx,

5 '-O-[6-(L-valyl oxygen base)-hexanoyl] videx,

5 '-O-[4-(L-isoleucyl-oxygen base)-propionyl] videx,

5 '-O-[5-(L-isoleucyl-oxygen base)-valeryl] videx,

5 '-O-[6-(L-isoleucyl-oxygen base)-hexanoyl] videx,

5 '-O-[4-(L-valyl oxygen base)-propionyl] DAPD,

5 '-O-[5-(L-valyl oxygen base)-valeryl] DAPD,

5 '-O-[6-(L-valyl oxygen base)-hexanoyl] DAPD,

5 '-O-[4-(L-isoleucyl-oxygen base)-propionyl] DAPD,

5 '-O-[5-(L-isoleucyl-oxygen base)-valeryl] DAPD,

5 '-O-[6-(L-isoleucyl-oxygen base)-hexanoyl] DAPD,

5 '-O-[4-(L-valyl oxygen base)-propionyl] lamivudine,

5 '-O-[5-(L-valyl oxygen base)-valeryl] lamivudine,

5 '-O-[6-(L-valyl oxygen base)-hexanoyl] lamivudine,

5 '-O-[4-(L-isoleucyl-oxygen base)-propionyl] lamivudine,

5 '-O-[5-(L-isoleucyl-oxygen base)-valeryl] lamivudine,

5 '-O-[6-(L-isoleucyl-oxygen base)-hexanoyl] lamivudine,

And 4-[2-amino-6-(cyclopropyl amino)-9H-purine-9-yl]-2-cyclopentenes-corresponding derivative of 1-methyl alcohol.

The particularly preferred compound of formula Id comprises:

4 '-O-[4-(L-valyl oxygen base)-butyryl] acyclic bird nuclear,

4 '-O-[3-(L-isoleucyl-oxygen base)-butyryl] acyclic bird nuclear,

5 '-O-[4-(L-valyl oxygen base)-butyryl] ddI,

5 '-O-[3-(L-isoleucyl-oxygen base)-butyryl] ddI,

5 '-O-[4-(L-valyl oxygen base)-butyryl] videx,

5 '-O-[3-(L-isoleucyl-oxygen base)-butyryl] videx,

5 '-O-[4-(L-valyl oxygen base)-butyryl] DAPD,

5 '-O-[3-(L-isoleucyl-oxygen base)-butyryl] DAPD,

5 '-O-[4-(L-valyl oxygen base)-butyryl] lamivudine,

5 '-O-[3-(L-isoleucyl-oxygen base)-butyryl] lamivudine,

And 4-[2-amino-6-(cyclopropyl amino)-9H-purine-9-yl]-2-cyclopentenes-corresponding derivative of 1-methyl alcohol, and pharmacy acceptable salt.

R in these compounds ₂Group hydrolysis in vivo and remove after, but left active end group cyclisation and promote effective release of parent nucleosides.

The invention provides the compound shown in the formula If equally:

R wherein ₁, R ₂, Ry, p, q, r and o-nuc as above define.

The favourable compound of this respect of the present invention comprises:

5 '-O-[3-ethoxycarbonyl-2-valyl oxygen base-propionyl]-ddI,

5 '-O-[3-ethoxycarbonyl-2-isoleucyl-oxygen base-propionyl]-ddI,

5 '-O-[4-ethoxycarbonyl-2,3-two valyl oxygen base-butyryl]-ddI,

5 '-O-[4-ethoxycarbonyl-2,3-two isoleucyl-oxygen base-butyryl]-ddI,

4 '-O-[3-ethoxycarbonyl-2-valyl oxygen base-propionyl]-acycloguanosine,

4 '-O-[3-ethoxycarbonyl-2-isoleucyl-oxygen base-propionyl]-acycloguanosine,

4 '-O-[4-ethoxycarbonyl-2,3-two valyl oxygen base-butyryl]-acycloguanosine,

4 '-O-[4-ethoxycarbonyl-2,3-two isoleucyl-oxygen base-butyryl]-acycloguanosine,

5 '-O-[3-ethoxycarbonyl-2-valyl oxygen base-propionyl]-DAPD,

5 '-O-[3-ethoxycarbonyl-2-isoleucyl-oxygen base-propionyl]-DAPD,

5 '-O-[4-ethoxycarbonyl-2,3-two valyl oxygen base-butyryl]-DAPD,

5 '-O-[4-ethoxycarbonyl-2,3-two isoleucyl-oxygen base-butyryl]-DAPD,

5 '-O-[3-ethoxycarbonyl-2-valyl oxygen base-propionyl]-videx,

5 '-O-[3-ethoxycarbonyl-2-isoleucyl-oxygen base-propionyl]-videx,

5 '-O-[4-ethoxycarbonyl-2,3-two valyl oxygen base-butyryl]-videx,

5 '-O-[4-ethoxycarbonyl-2,3-two isoleucyl-oxygen base-butyryl]-videx,

5 '-O-[3-ethoxycarbonyl-2-valyl oxygen base-propionyl]-lamivudine,

5 '-O-[3-ethoxycarbonyl-2-isoleucyl-oxygen base-propionyl]-lamivudine,

5 '-O-[4-ethoxycarbonyl-2,3-two valyl oxygen base-butyryl]-lamivudine,

5 '-O-[4-ethoxycarbonyl-2,3-two isoleucyl-oxygen base-butyryl]-lamivudine,

And 4-[2-amino-6-(cyclopropyl amino)-9H-purine-9-yl]-2-cyclopentenes-corresponding oxysuccinic acid of 1-methyl alcohol and tartaric acid derivatives, and pharmacy acceptable salt; In each case, the isomer derived from L-tartrate and L MALIC ACID is preferred.

The invention provides the compound shown in the formula Ig:

R wherein ₂, p, q and O-nuc as above define.

Preferred formula Ig compound comprises:

4 '-O-[2-(L-valyl oxygen base)-propionyl] acycloguanosine,

4 '-O-[2-(L-isoleucyl-oxygen base)-propionyl] acycloguanosine,

5 '-O-[2-(L-valyl oxygen base)-propionyl] ddI,

5 '-O-[2-(L-isoleucyl-oxygen base)-propionyl] ddI,

5 '-O-[2-(L-valyl oxygen base)-propionyl] videx,

5 '-O-[2-(L-isoleucyl-oxygen base)-propionyl] videx,

5 '-O-[2-(L-valyl oxygen base)-propionyl] lamivudine,

5 '-O-[2-(L-isoleucyl-oxygen base)-propionyl] lamivudine,

5 '-O-[2-(L-valyl oxygen base)-propionyl] DAPD,

5 '-O-[2-(L-isoleucyl-oxygen base)-propionyl] DAPD,

And 4-[2-amino-6-(cyclopropyl amino)-9H-purine-9-yl]-2-cyclopentenes-corresponding derivative of 1-methyl alcohol, and pharmacy acceptable salt.These compound decomposition products, lactic acid and amino acid are and can well accept on the physiology.

Compound of the present invention can form salt, thereby constitutes another aspect of the present invention.The pharmacy acceptable salt of suitable formula I compound comprises organic acid salt, carboxylate salt particularly, include but not limited to acetate, trifluoroacetate, lactic acid salt, gluconate, Citrate trianion, tartrate, maleate, malate, pantothenate, isethionate, adipate, alginate, door winter hydrochlorate, benzoate, butyrates, digluconate, chaulmoogric acid salt, the glucoheptose hydrochlorate, phospho-glycerol salt, oxalate, enanthate, hexanoate, fumarate, nicotinate, palmitate, pectate, 3-phenylpropionic acid salt, picrate, Pivalate, propionic salt, tartrate, Lactobionate, pivolate, camphorate, undecane hydrochlorate and succinate, organic sulfonate such as mesylate, esilate, the 2-isethionate, camsilate, the 2-naphthalenesulfonate, benzene sulfonate, closilate and tosilate; And inorganic acid salt example hydrochloric acid salt, hydrobromate, hydriodate, vitriol, hydrosulfate, Hemisulphate, thiocyanate-, persulphate, phosphoric acid salt and sulfonate.Sometimes, formula I compound can separate by hydrate.

Term used herein " N blocking group " or " N protection " are meant the N-end that those are used for protecting amino acid or peptide, or in building-up process, the amino group that undesirable reaction does not take place of protection. N blocking group commonly used is disclosed in Greene, " protecting group in the organic synthesis " (John Wiley; Sons, New York, 1981), be hereby incorporated by reference the .N blocking group and comprise acyl group such as formyl radical, ethanoyl, propionyl, valeryl, tertiary butyl ethanoyl, 2-chloracetyl, 2-acetyl bromide, trifluoroacetyl group, tribromo-acetyl base, phthaloyl, ortho-nitrophenyl oxygen base ethanoyl, α-chlorobutyryl, benzoyl, 4-chlorobenzene formacyl, 4-benzoyl bromide, 4-nitro benzoyl etc.; Alkylsulfonyl such as benzenesulfonyl, p-toluenesulfonyl etc., form the group such as the benzyloxycarbonyl of carbamate, to the chlorophenoxy carbonyl, to methoxyl group benzyloxy base carbonyl, to the nitro benzyloxycarbonyl, 2-nitro benzyloxycarbonyl, to the bromo-benzyloxy-carbonyl, 3,4-dimethoxy benzyloxycarbonyl, 4-methoxyl group benzyloxy base carbonyl, 2-nitro-4,5-dimethoxy benzyloxycarbonyl, 3,4,5-trimethoxy benzyloxycarbonyl, 1-(to xenyl)-1-methyl ethoxy carbonyl, α, alpha-alpha-dimethyl-3,5-dimethoxy benzyloxycarbonyl, diphenyl-methyl oxygen base carbonyl, tert-butoxycarbonyl, the di-isopropyl methoxycarbonyl, isopropoxy carbonyl, ethoxy carbonyl, methoxycarbonyl, allyloxy carbonyl, 2,2,2-trichlorine ethoxy carbonyl, phenyloxycarbonyl, the 4-nitrophenoxy carbonyl, fluorenyl-9-methoxycarbonyl, the cyclopentyloxy carbonyl, the Buddha's warrior attendant alkoxy carbonyl, cyclohexyloxy carbonyl, phenyl thiocarbonyl group etc.; Alkyl such as benzyl, trityl group, benzyloxymethyl etc.; And silyl such as trimethyl silyl etc.The N blocking group comprises formyl radical, ethanoyl, allyl group, F-moc, benzoyl, valeryl, tertiary butyl ethanoyl, benzenesulfonyl, benzyl, tert-butoxycarbonyl (BOC) and benzyloxycarbonyl (Cbz) preferably.

Hydroxyl and/or carboxyl-protecting group in the above-mentioned document of Green, have also extensively been discussed; comprise ether such as methyl ether; replace methyl ether base such as methoxymethyl ether; the methylthio group methyl ether; the benzyloxy methyl ether; the tert.-butoxy methyl ether; 2-methoxy ethoxy methyl ether etc.; silicon ether such as trimethylsilyl ethers (TMS); tertiary butyl dimethyl-silicon ether (TBDMS); tribenzyl silicon ether; triphenyl silicon ether; tert-butyl diphenyl silicon ether; triisopropyl silicon ether etc.; replace ethyl ether such as 1-(ethoxymethyl) ether; 1-methyl isophthalic acid-methyl ethyl ether; tertiary butyl ether; the allyl group ether; the benzyl ether; to the mehtoxybenzyl ether; the diphenylmethyl ether; triphenyl methyl ethyl ether etc.; aralkyl such as trityl and pixyl (9-hydroxyl-9-phenyl xanthene derivative, particularly muriate).The ester hydroxyl protecting group comprises manthanoate, benzyl formate, chloracetate, methoxyacetic acid ester, phenylium ester, pivalate, adamantanecarboxylic acid ester, mesitonic acid ester, benzoic ether etc.The carbonic ether hydroxyl protecting group comprises methyl ester, vinyl ester, allyl ester, cinnamyl ester, benzyl ester etc.

For the conventional usage with retrovirus and HBV inhibitor is consistent, it is favourable taking one to three kind or more antivirotic simultaneously, as under the HIV situation, taking AZT, ddI, ddC, d4T, 3TC, H2G, phosphine formic acid, ritonavir, indinavir, that Wei of husky silicon, nevirapine, delaviridine, Vertex VA478 or Agouron AG1343 etc., or under the HBV situation, take lamivudine, Interferon, rabbit, Famciclovir etc.These extra antivirotics will be with the dosed administration of big their therapeutic values separately of activation reflection.With respect to formula I compound or salt, mol ratio is generally 100:1～1:100, and particularly 25:1～1:25 is comparatively favourable.Antiviral nucleoside for the treatment herpes infection uses other antivirotic uncommon simultaneously.

Although promoting agent can be individually dosed, preferably as the component in the pharmaceutical preparation.This preparation comprises promoting agent and one or more acceptable carrier/vehicle of above-mentioned definition, and other optional therapeutic component.Carrier must be compatible and harmless to acceptor with other composition in the preparation.

Preparation comprises that those are suitable for the preparation of rectum, nose, part (comprise mouthful and hypogloeeis), sheath or parenteral (comprising in subcutaneous, intramuscular, intravenously and the epidermis) administration, but the preferred oral preparation.Preparation exists with unit dosage form usually, as tablet and slow releasing capsule, and can be by any known method preparation of pharmaceutical field.

These methods comprise that the promoting agent with above-mentioned definition combines with carrier, and the method for preparing preparation usually is, at first evenly closely promoting agent and liquid carrier or solid-state carrier in small, broken bits or both are combined, then, and if necessary, the product of finalizing the design.The invention provides the method for preparing pharmaceutical compositions, formula I compound or its pharmacologically acceptable salts are combined with pharmaceutically acceptable carrier or vehicle or mixing if comprise. the manufacturing of preparation relates to salt formula active ingredient and mixes with the close of drug excipient, then Chang Youxuan uses non-alkaline vehicle, promptly acid or neutral vehicle.

The unit that oral preparations among the present invention can disperse exists, and as capsule, cachet or tablet, each all contains the promoting agent of predetermined amount; Can pulvis or granule exist; Can exist by the solution or the form of suspension of promoting agent in water or on-aqueous liquid; Or exist with forms such as O/w emulsion or water-in-oil emulsion and pills.

For oral compositions (as tablet and capsule), suitable term " carrier " comprises carrier such as common vehicle, as tackiness agent, for example syrup, gum arabic, gelatin, sorbyl alcohol, tragacanth gum, polyvinylpyrrolidone (Povidone), methylcellulose gum, ethyl cellulose, sodium carboxymethyl-cellulose, Vltra tears, sucrose and starch; Filler and carrier are as W-Gum, gelatin, lactose, sucrose, Microcrystalline Cellulose, kaolin, mannitol, Lin Suanergai, sodium-chlor and alginic acid; And lubricant such as Magnesium Stearate, sodium stearate and other Metallic stearates, stearin, stearic acid, polysiloxane fluid, talcum, paraffin, oil and colloided silica, seasonings such as peppermint, wintergreen oil, cherry seasonings etc. also can adopt.Needing, or add a kind of tinting material that makes preparation be easy to recognize. tablet also can pass through the means known in the art dressing.

Tablet can be by compacting or moulding method preparation, optional one or more auxiliary components that has.Compressing tablet can be by in suitable machine, and compacting prepares with the activator that any liquid form (as powder or granular) exists, optional and tackiness agent, lubricant, inert diluent, sanitas, tensio-active agent or dispersant.Moulding sheet can be by in suitable machine, and the pulverulent mixture moulding of inert liquid diluent profitization is prepared. and tablet can be chosen wantonly by dressing or mark, and can reach slow release or controlled release promoting agent after being made into.

Other is suitable for oral preparation and comprises: contain the lozenge of the promoting agent in flavoured base, flavoured base is generally sucrose and gum arabic or tragacanth gum; The pastille that contains the activator in inert base, inert base such as gelatin and glycerine, or sucrose and gum arabic, and the mouth-washes that contains the promoting agent in the suitable liquid carrier.

The present invention provides the method for a kind of preparation formula I or Ic compound on the other hand, and this method comprises the acidylate of nucleosides, is the FLG shown in the molecular formula V, generally at 5 ' hydroxyl herein

Wherein, R ₁(R ₂) L ₁X represents activated acids, suc as formula the carboxylic acid derivative shown in IIa or the IIb, wherein R ₁, R ₂And L ₁As above define or its protected derivative.In addition, activated acids also can comprise formula R ₁(R ₂) compound of glycerine-D-X, wherein R ₁, R ₂Define suc as formula IIc with D, perhaps under the situation of preparation Ia compound, activated acids comprises activatory R _z-O-Alk-C (=O) X derivative. in the latter, connecting base can make up successively by following method: at first with the D of appropriateness protection or 'omega '-hydroxy carboxylic acid esterification to nucleosides, with terminal carboxyl(group) or hydroxyl deprotection, then esterification its go up glycerine or the R that appropriateness is protected _zPart.

The acid that used activated derivatives contains for example carboxylic acid halides, acid anhydrides, activation acid esters or exists with coupling agent in the acylation reaction, for example dicyclohexyl carbodiimide.Typical activated acid derivatives comprises carboxylic acid halides, alkoxy carbonyl halogenide deutero-acid anhydride, as isobutoxy carbonyl muriate etc., N-hydroxyl succinic diamide deutero-ester, N-hydroxyl phthalimide deutero-ester, N-hydroxyl-5-norbornylene-2,3-imide deutero-ester, 2,4,5-Trichlorophenol deutero-ester etc.Activated acids can comprise that also molecular formula is the compound of RX, and wherein X represents OR ' part, wherein R such as R ₂Define, R ' is for example COCH ₃, COCH ₂CH ₃Or COCF ₃, perhaps X is a benzotriazole.

When the present invention is used for other monohydroxylic ucleosides, can use corresponding method, be correspondingly esterification to the free 5 ' hydroxyl of monohydroxylic ucleosides (or equivalent) of activated derivatives, monohydroxylic ucleosides such as acycloguanosine, ddI, FTC, lamivudine, 1592U89, DAPD, F-ddA etc.

Intermediate itself used in the aforesaid method has defined new compound, particularly the compound shown in those formulas IIc ':

Wherein A, A ' and Alk as above define (A and A ' are preferably with protecting group protection commonly used), and X represents free acid or above-mentioned activated acids.

The typical compound of formula IIc ' comprises:

Propanedioic acid 2,3-two-(L-valyl oxygen base)-propyl diester

Propanedioic acid 2,3-two-(N-CBZ-L-valyl oxygen base)-propyl diester

Propanedioic acid 2,3-two-(N-Fmoc-L-valyl oxygen base)-propyl diester

Propanedioic acid 2,3-two-(N-Boc-L-valyl oxygen base)-propyl diester

Propanedioic acid 2,3-two-(L-isoleucyl-oxygen base)-propyl diester

Propanedioic acid 2,3-two-(N-CBZ-L-isoleucyl-oxygen base)-propyl diester

Propanedioic acid 2,3-two-(N-Fmoc-L-isoleucyl-oxygen base)-propyl diester

Propanedioic acid 2,3-two-(N-Boc-L-isoleucyl-oxygen base)-propyl diester

Succinic Acid 2,3-two-(L-valyl oxygen base)-propyl diester

Succinic Acid 2,3-two-(N-CBZ-L-valyl oxygen base)-propyl diester

Succinic Acid 2,3-two-(N-Fmoc-L-valyl oxygen base)-propyl diester

Succinic Acid 2,3-two-(N-Boc-L-valyl oxygen base)-propyl diester

Succinic Acid 2,3-two-(L-isoleucyl-oxygen base)-propyl diester

Succinic Acid 2,3-two-(N-CBZ-L-isoleucyl-oxygen base)-propyl diester

Succinic Acid 2,3-two-(N-Fmoc-L-isoleucyl-oxygen base)-propyl diester

Succinic Acid 2,3-two-(N-Boc-L-isoleucyl-oxygen base)-propyl diester

Pentanedioic acid 2,3-two-(L-valyl oxygen base)-propyl diester

Pentanedioic acid 2,3-two-(N-CBZ-L-valyl oxygen base)-propyl diester

Pentanedioic acid 2,3-two-(N-Fmoc-L-valyl oxygen base)-propyl diester

Pentanedioic acid 2,3-two-(N-Boc-L-valyl oxygen base)-propyl diester

Pentanedioic acid 2,3-two-(L-isoleucyl-oxygen base)-propyl diester

Pentanedioic acid 2,3-two-(N-CBZ-L-isoleucyl-oxygen base)-propyl diester

Pentanedioic acid 2,3-two-(N-Fmoc-L-isoleucyl-oxygen base)-propyl diester

Pentanedioic acid 2,3-two-(N-Boc-L-isoleucyl-oxygen base)-propyl diester

And the diester of corresponding carboxylic acid halides, particularly acyl chlorides, acid anhydrides and above-mentioned each compound, for example

Succinic Acid 2,3-two-(N-CBZ-L-valyl oxygen base)-propyl diester, 4-methoxy benzyl ester

Succinic Acid 2,3-two-(N-CBZ-L-valyl oxygen base)-propyl diester, 1,1-dimethyl ethyl ester,

The preferred group of intermediate also contains formula IIa ' group:

Wherein Rx, Alk, m, n and T are as mentioned above; A and A ' representative be connected L '-aliphatic amino acid that base goes up hydroxy esterification (if desired; protection N) acyl residue; perhaps one of A and A ' are acyl residue; another is a free hydroxyl group; free acid or activated acids that the X representative is above-mentioned, A is preferably identical amino-acid residue with A '.

Other new intermediate comprises the free or activated acids precursor of compound shown in the formula Ia, as:

3-N-Boc-L-valyl oxygen base propionic acid, 3-N-Fmoc-L-valyl oxygen base propionic acid, 3-N-CBZ-L-valyl oxygen base propionic acid, 3-N-Boc-L-isoleucyl-oxygen base propionic acid, 3-N-Fmoc-L-isoleucyl-oxygen base propionic acid, 3-N-CBZ-L-isoleucyl-oxygen base propionic acid, 4-N-Boc-L-valyl oxygen base butyric acid, 3-N-Fmoc-L-valyl oxygen base butyric acid, 4-N-CBZ-L-valyl oxygen base butyric acid, 4-N-Boc-L-isoleucyl-oxygen base butyric acid, 3-N-Fmoc-L-isoleucyl-oxygen base butyric acid, 3-N-CBZ-L-isoleucyl-oxygen base butyric acid etc., and activated derivatives, as carboxylic acid halides.

New intermediate also comprises the precursor of compound shown in above-mentioned formula IIe and the IIf, and particularly those are from " natural " configuration (as L MALIC ACID and L-tartrate) derived compounds, for example:

3-ethoxy carbonyl-2-valyl oxygen base-propionic acid

3-ethoxy carbonyl-2-isoleucyl-oxygen base-propionic acid

4-ethoxy carbonyl-2,3-two-valyl oxygen base-butyric acid

4-ethoxy carbonyl-2,3-two-isoleucyl-oxygen base-butyric acid

3-benzyloxycarbonyl-2-valyl oxygen base-propionic acid

3-benzyloxycarbonyl-2-isoleucyl-oxygen base-propionic acid

4-benzyloxycarbonyl-2,3-two-valyl oxygen base-butyric acid

4-benzyloxycarbonyl-2,3-two-isoleucyl-oxygen base-butyric acid etc.;

With corresponding activated derivatives, as acid anhydrides.

New intermediate also comprises the precursor corresponding to structure shown in the formula IId, as: 2-(L-valyl oxygen base) propionic acid, 2-(N-Boc-L-valyl oxygen base) propionic acid, 2-(N-Fmoc-L-valyl oxygen base) propionic acid, 2-(N-CBZ-L-valyl oxygen base) propionic acid, 2-(L-isoleucyl-oxygen base) propionic acid, 2-(N-Boc-L-isoleucyl-oxygen base) propionic acid, 2-(N-Fmoc-L-isoleucyl-oxygen base) propionic acid, N-(CBZ-L-isoleucyl-oxygen base) propionic acid, 2-(L-valyl oxygen base) butyric acid, 2-(N-Boc-L-valyl oxygen base) butyric acid, 2-(N-Fmoc-L-valyl oxygen base) butyric acid, 2-(N-CBZ-L-valyl oxygen base) butyric acid, 2-(L-isoleucyl-oxygen base) butyric acid, 2-(N-Boc-L-isoleucyl-oxygen base) butyric acid, 2-(N-Fmoc-L-isoleucyl-oxygen base) butyric acid, N-(CBZ-L-isoleucyl-oxygen base) butyric acid etc.; And activated derivatives, as carboxylic acid halides.

3 ' fluorine nucleosides suc as formula the preparation method of V compound by Herdiwijn etc. at " nucleosides and Nucleotide " 8 (1), 65-96 (1989) discusses in detail, the document is hereby incorporated by reference.Other monohydroxylic nucleosides such as acycloguanosine, ddI (2 ', 3 '-dideoxyinosine), ddC (2 ', 3 '-dideoxycytidine), d4T (2 ' 3 '-videx), FTC, lamivudine (3TC), 1592U89 (4-[2-amino-6-(cyclopropylamino)-9H-purine-9-yl]-2-cyclopentenes-1-methyl alcohol), AZT (Zidovodine), DAPD (D-2,6-diaminopurine dioxolane), F-ddA etc. is known, and discusses in detail in the document.

R ₁(R ₂) L ₁L ₂The reactive derivative of X group can prepare in advance or pass through with reagent such as dicyclohexyl carbodiimide (DDDC) or O-(1H-benzotriazole-1-yl) N, N, and N ', N ' tetramethyl-urea a tetrafluoro borate (TBTU) generates in position.When the use carboxylic acid halides, during as acyl chlorides, tertiary amine catalyst, as triethylamine, N, N '-xylidine, pyridine or Dimethylamino pyridine can be added in the reaction mixture, combine with the haloid acid that discharges.

Reaction is preferably at non-reactive solvent such as N, carry out in dinethylformamide, tetrahydrofuran (THF), diox, acetonitrile or halohydrocarbon such as the methylene dichloride, if necessary, above-mentioned any tertiary amine catalyst of mentioning all can be used as solvent, only notes to keep suitable excessive.Temperature of reaction generally changes in 0～60 ℃, but preferably remains on 5～50 ℃.After 1～60 hour; reaction is finished usually basically; use thin-layer chromatography (TLC) and proper solvent system tracking reaction process then, common when determining that with TLC reaction is finished, also use chromatogram purification and/or use the proper solvent system recrystallization with the organic solvent extraction product.

The by product that acylation reaction produced takes place on the nucleosides matrix can be separated with chromatography, but the acylation of this dislocation can make it minimum by the control reaction conditions.For example by control reagent concentration or feed rate, particularly acylating agent; By reducing temperature or can reaching control condition by selective solvent.Follow the tracks of reaction with the Monitoring and Controlling condition with TLC.6-oxygen base, particularly 2-amino with on the protecting group protection matrix commonly used can prevent the acylation that misplaces.

R ₃During for hydrogen, the compound shown in the formula IV can prepare as follows: with a kind of activation base as halogen with corresponding guanine compound shown in the formula I at 6 activation (R wherein ₂Amido functional group exposed in the amino-acid residue is optional with N blocking group protection commonly used).The activation 6-purine that obtains is reduced to purine subsequently, for example uses palladium catalyst, sloughs protection then and obtains required formula IV or formula V compound.

R ₃Be R ₁Or the compound of other ester can prepare by the esterification (being similar to above-mentioned esterification) of corresponding formula I or formula IV oxy-compound, chooses wantonly at R ₂And/or R ₃Amido functional group exposed in the amino-acid residue is by after the N protection.R ₃Compound during for ether can be by being similar to above-mentioned WO9313778 disclosed method preparation, same optional exposed amino N protection. work as R ₃During for trinitride, as the described method preparation of WO9709052.

Intermediate shown in the formula IId can use the R of suitable activatory and N protection ₂Derivative, valyl or isoleucyl-radical derivative combination coupling agent commonly used such as DMAP/DCC as N-CBZ; Perhaps using the amino acid acyl chlorides, with the hydroxyl alkane acid acidylate of carboxyl one protection, generally is that 2-hydroxyl-1-paraffinic acid prepares.Remove carboxyl-protecting group then, for example by acidolysis.The intermediate that obtains activates as stated above, perhaps free acid and coupling agent esterification nucleosides under enzymatic synthesis condition commonly used together.

Described method preparation formula Ia compound common available the last period, the i.e. R of the Alpha-hydroxy of carboxy protective, ω-carboxylic acid such as oxyacetic acid, lactic acid, hydroxybutyric acid etc. and suitable N protection ₂Esterification of derivatives.Also available free acid and coupling agent together or activatory acid, as corresponding carboxylic acid halides. remove carboxyl-protecting group, the intermediate that obtains carried out esterification with aforesaid method and nucleosides.

The compound that contains formula IIe or IIf structure can pass through general carboxy protective group such as benzoyl, to different di-carboxylic acid, as L-tartrate or L MALIC ACID, terminal carboxyl(group) carry out carboxy protective and prepare.The free hydroxyl comes esterification with common esterification techniques then, as DMAP ﹠amp in DMF; DCC is with the R of suitable N protection ₂Amino acid is as N-Boc-L-valyl or the esterification of N-Boc-L-isoleucyl-. remove the benzoyl carboxyl-protecting group, and with conventional method, as the method among the embodiment, with 5 of the product that obtains and monohydroxy nucleosides '-the hydroxy functional group esterification.At last, free carboxyl functional group and R ₁The group esterification, or more preferably esterification is pharmaceutically acceptable ester commonly used-as ethyl ester.

The compound that contains phosphorylated part III can be by 2 ', 3 '-two deoxidations-3 '-fluorine guanine-5-monophosphate and formula VIa compound prepared in reaction,

Wherein Ha is a halogen, and as chlorine, iodine or bromine, condition is similar to those at US 4 337 201, US5227 506, WO 94/13682 ﹠amp; WO94/13324, in the described condition of Tetrahedron Lett 30 7141-7144 (1989), these documents are hereby incorporated by reference Starret etc. at J Med Chem 371857-1864 (1994) and Iyer etc.Monophosphate can prepare by the phosphorylation of FLG commonly used, and is for example, described at above-mentioned documents such as Herdwyn. and corresponding techniques will be used for the monophosphate of other monohydroxylic nucleosides.

Another kind obtains the esterification of phosphoric acid ester and also can divide two steps to carry out, and comprises the reaction of the first step between FLG-Monophosphate and formula VII compound

R wherein ₄And R ₄' as above the definition, PG is aforesaid conventional carboxyl-protecting group, then deprotection and with the 3rd, low order end functional group is the connection base L of hydroxyl ₁Esterification. the following wiring diagram 1 of two examples (penult compound in every series) of this linking group is described. and in this embodiment, the leftmost carbonyl of formula Va is identical with the carbonyl of the connection base that formula IIa connects.

Contain the optional basic L of connection ₂Compound also can prepare by two-step approach.Formula ClC (=O) OC (R particularly ₄) (R ₄') compound of Cl can react with 5 ' hydroxyl (choosing wantonly on matrix with protecting group protection commonly used) of FLG, this is known in the cynnematin field.The FLG-5 ' that obtains-O-C (=O) OC (R ₄) (R ₄') hydrochloride subsequently with R ₁And the band trifunctional connects the R of base ₂React, wherein carboxyl functional group is contained in the 3rd functional group, as sylvite.

Should be appreciated that the trifunctional L of formula IIa ₁Group, wherein n and m are 1, and Alk is not when existing, and can following circuit shown in Figure 1, referring to the valyl combination of stearyl/L-, footpath regioselectivity esterification prepares from glycerine.In brief, R ₁And R ₂Selectivity and glycerine 1 and 3 bit esterified, then 2 be converted into suitable-T-C (=O)-group, this group subsequently with 5 of fluorine nucleosides ' bit esterified, or and L ₂The collaborative group esterification of (not marking). the hydroxyl on 2 of glycerol derivative also can with the L that contains collaborative carbonyl functional group at its left hand end ₂Group carries out esterification.

The L of formula IIa ₁Group, wherein m is 1, n is 0, when Alk is methylene radical, also can be by regioselectivity ground with R ₁And R ₂Esterification is gone up and is prepared to 1 and 2 of glycerine, and following circuit is shown in Figure 1, then 3 hydroxyl be converted into suitable-T-C (=O)-group. in the wiring diagram 1 a series of reaction and display of low order end R ₁1 bit esterified and R with glycerine ₂With 2 bit esterified situations.R wherein ₁With 2 bit esterified, R ₂Can obtain by following method with 1 bit esterified corresponding arrangement: at first use CBz-L-Xie Ansuan/DCC/DMAP/DMF to handle glycerine, then at lipid acid R ₁With glycerine 2 bit esterified before, with 3 of pixyl muriate protections, last deprotection if necessary, transforms 3.

Although circuit 1 passes through with reference to R ₁Be stearyl, R ₂Illustrate for the combination that L-is valyl, can think that this basic block diagram also applicable to other amino acid, wherein can use other lipid acid; Or adopt the GPF (General Protection False group, also be applicable to R ₂Be amino acid derivative, R ₁Combination for hydroxyl.When T contained one-NH-group, connecting base can be prepared by similar regioselectivity esterification, then the free hydroxyl is converted into amino, restored to be trinitride, and last and phosgene reaction is to generate corresponding urea chloride.

But change the connection base shown in the wiring diagram I preparation formula IIc. in this change, above-mentioned phosgene reaction step is used and is activated the reaction that di-carboxylic acid such as succinyl oxide carry out and replace.Obtain triglyceride level like this and (contain (optional protection) R ₁Ester, the R of protection ₂The ester of ester and di-carboxylic acid); then with the free carboxy on di-carboxylic acid activation and press the usual way esterification to nucleosides. the connection base shown in the formula IIc also can generate in the nucleosides original position; in this change, the di-carboxylic acid esterification is to by on the glycerol derivative of due care.This monomester succinate subsequently by mode esterification commonly used to 5 of nucleosides '-hydroxy functional group on. one or two protecting groups are replaced by the L-amino acid ester in the final glycerine part.In addition, if present, remaining protecting group is replaced by fatty acid ester, or is removed and remaining free hydroxyl group.An embodiment has been described shown in the wiring diagram IA, and wherein nucleosides is cyclic guanosine (diplopia is represented FLG), and di-carboxylic acid is a succsinic acid, R ₁And R ₂All be the valyl of CBZ-protection, it also may be used on other variation of formula Ic certainly.Under each situation, coupling condition is meant conventional enzymatic synthesis condition, is converted into reactive derivative such as acyl chlorides as coupling agent DMAP, DCC etc. or relevant carboxyl functional group, perhaps contains acid anhydrides in the activatory succsinic acid part.

In a kind of change of wiring diagram IA, be direct and nucleosides reaction with succinyl oxide, thereby avoided the first step protection and deprotection process.Another kind method is the amino acid moiety esterification glycerine part with the N protection with coming regioselectivity, and the hydroxyl that generally will be coupled to nucleosides is simultaneously protected, then with this hydroxyl deprotection and and nucleoside coupling.

M and n are 1, and Alk is alkylidene group or alkenylene, when T is singly-bound, connect the as above preparation of the method shown in the wiring diagram II of base.The trifunctional linking group L of formula IIa ₁In other array modes of m, n, Alk and various functional groups can use corresponding raw material, by being similar to above-mentioned method preparation.Raw material is as 1,2,4-trihydroxybutane (CA registration number 3968-00-6), 3,4-dihydroxyl butyric acid (1518-61-2﹠amp; 22329-74-4), (S)-3,4-dihydroxyl butyric acid (51267-44-8), (R)-3,4-dihydroxyl butyric acid (158800-76-1), 1,2,5-penta triol (51064-73-4﹠amp; 14697-46-2), (S)-1,2,5-penta triol (13942-73-9), (R)-1,2,5-penta triol (171335-70-9), 4,5-dihydroxy-acid (66679-29-6﹠amp; 129725-14-0), 1,3,5-penta triol (4328-94-3) and 3-(2-hydroxyethyl)-1,5-pentanediol (53378-75-9).Preparation method's reference registration number separately of each raw material.Ohsawa etc. have described in Chem.Pharm.Bull.39 (3) 823-825 (1991) with lipase P control trifunctional with Terao etc. in Chem.Pharm.Bull.41 (11) 1906-1909 (1993) and have been connected basic stereochemistry.

R ₂Amino acid derivative and R ₁(if present) also can pass through 2-oxa--4-azepine-cycloalkanes-1, the esterification of 3-diketone method is to connecting on the base, and this method is described in International Patent Application WO 94/29311, and the document is hereby incorporated by reference.

By chemistry of peptides commonly used, with R ₁And/or R ₂Carboxyl functional group be connected to and connect on the basic deutero-amino, general simultaneously with N protecting group protection alpha-amino group commonly used.At the carboxyl and the R that connect base ₂Alpha-amino group between, form amido linkage by chemistry of peptides commonly used, generally carry out the protection of α-carboxyl functional group simultaneously.Fatty Alcohol(C12-C14 and C12-C18) R ₁Esterification is to the above-mentioned R that is similar to that connects carboxyl functional group on the base ₁For lipid acid esterification process, but esterification is reciprocal.

Description of drawings

Illustrate all respects of the present invention now, following examples and accompanying drawing thereof for reference only, wherein:

Figure 1 shows that through treatment and untreated serum-virus-DNA concentration, the duck that infects DHBV is as the function of time, shown in biological Examples 3;

Figure 2 shows that the body weight increment through treatment, the duck that infects DHBV is as the function of time, shown in biological Examples 3.

Embodiment 1

2-(stearoyl keto ylmethyl)-2-(N-(fluorenyl methoxy carbonyl)-L-valyl oxygen Ji Jia Base)-propionic acid

To 2, add potassium hydroxide (11.78 grams, 210 mmoles) in water (50 milliliters) solution of 2-two (methylol) propionic acid (28.16 grams, 210 mmoles).After 5 minutes, evaporating solns in a vacuum, and with dry DMF coevaporation resistates three times.Then resistates is dissolved among the DMF (500 milliliters), in this solution, adds benzoyl bromide (3.57 Milliliter, 30 milliliters). stir after 30 minutes, by the Celite filter reaction mixture, pour in the sodium bicarbonate aqueous solution, and use dichloromethane extraction.Collect organic phase, use the solution washing of sodium bicarbonate then.Evaporation obtains 2 in a vacuum subsequently, 2-two (methylol) benzyl propionate (4.37 gram),

¹H-NMR(CDCl ₃)：7.35(s，5H)，5.20(d，2H)，3.91-3.71(m，4H)，1.10(s，3H).

40 fens clock times,, drip the dichloromethane solution of stearyl chloride (4.13 grams, 13.6 mmoles) in pyridine (50 milliliters) solution of 2-two (methylol) benzyl propionate (4.37 grams, 19.5 mmoles) to 2.Reaction kept 16 hours then, and poured in the sodium bicarbonate aqueous solution, used dichloromethane extraction.Collect organic phase and evaporation in a vacuum.By silica gel column chromatography separated product 2-(hydroxyethyl)-2-(stearoyl keto ylmethyl) benzyl propionate (1.97 gram),

¹H-NMR(CDCl ₃)：7.34(s，5H)，5.17(d，2H)，4.28(dd，2H)，3.69(dd，2H)，2.24(t，2H)，1.57(m，2H)，1.25(s，28H)，1.22(s，3H)，0.87(t，3H)。

With 2-(hydroxyethyl)-2-(stearoyl keto ylmethyl) benzyl propionate (1.86 grams, 3.8 mmole) be dissolved in the pyridine (30 milliliters). in solution, add (73 milligrams of toluenesulphonic acidss, 0.39 N-fluorenyl methoxy carbonyl-L-Xie Ansuan (3.94 grams mmole),, 11.6 mmole) and DCC (3.58 gram, 17.4 mmoles).Be reflected at 4 ℃ and kept 16 hours, filter by Celite (diatomite) then. filtrate is poured in the sodium bicarbonate aqueous solution, and use dichloromethane extraction.Collect organic phase and evaporation in a vacuum.By silica gel column chromatography separated product 2-(N-fluorenyl-methoxycarbonyl)-L-valyl oxygen ylmethyl)-2-(stearoyl keto ylmethyl) benzyl propionate, output 2.38 grams,

¹H-NMR(CDCl ₃)：7.78-7.25(m，13H)，5.29(m，1H)，5.15(d，2H)，4.38-4.23(m，7H)，2.19(t，2H)，2.10(m，1H)，1.55(m，2H)，1.24(m，31H)，0.94-0.83(m，9H)。

2-(N-fluorenyl-methoxycarbonyl)-L-valyl oxygen ylmethyl in THF/ methyl alcohol (16 milliliters/8 milliliters) mixed solvent)-2-(stearoyl keto ylmethyl) benzyl propionate (1.86 grams, 3.8 mmole) add (376 milligrams of ammonium formiates in the solution, 6 mmoles), formic acid (1.87 milliliters) and palladium black (40 milligrams). reaction kept 16 hours at room temperature, filter by Celite then. after the evaporation, by the silica gel column chromatography separated product, output 1.05 grams.

Embodiment 2

1-O-stearyl-2-O-(N-CBz-L-valyl) glycerine

A) preparation 1-O-stearyl glycerine

Drip the stearyl chloride (10 grams, 33 mmoles) that is dissolved among the DMF (100 milliliters) in glycerine in being dissolved in DMF (300 milliliters) (30 grams, 326 mmoles) and pyridine (25 milliliters) mixture.Mixture cools off until being added dropwise to complete on ice bath.Be reflected at N ₂Add CH after keeping under the atmosphere spending the night .15 hour ₂Cl ₂(300 milliliters) and saturated NaHCO ₃(aqueous solution).Phase-splitting and water (50 milliliters) washing organic phase, Na ₂SO ₄Dry also vaporising under vacuum solvent and pyridine separate (CH in the enterprising circumstances in which people get things ready for a trip spectrum of silica column ₂Cl ₂-MeOH, 20:1) crude product and recrystallization (CH ₂Cl ₂-ether), about 7 grams of output.

B) preparation pixyl muriate

Acetyl Chloride 98Min. (150 milliliters, 2.1 moles) is joined in the benzene suspension of the 9-hydroxyl-9-phenyl xanthene (20 grams, 72 mmoles) under the magnetic agitation. obtain uniform dark red solution, this solution stirred 30 minutes at 20 ℃.Under reduced pressure remove volatile matter. carefully add ethanol, excessive AcCl neutralizes.Resistates and toluene (2 * 30 milliliters) and hexanaphthene (2 * 30 milliliters) coevaporation obtain crystalline residue, the airtight preservation of this resistates.Also can buy the Pixyl muriate from Aldrich.

C) preparation 1-O-stearyl, 3-O-pixyl glycerine

Mixing is from above-mentioned product that a) obtains (2.28 gram) and pyridine (25 milliliters), and heating is until dissolving. and the cooling back adds the pixyl muriate (1.92 gram) that obtains from step b) in ice bath.Stirring down, in ice bath, keep mixture half an hour under the argon gas atmosphere, at room temperature kept then 1.5 hours. the vaporising under vacuum pyridine, resistates is dissolved in CH ₂Cl ₂Wash to remove the residue pyridine in (70 milliliters) and with the 0.5M citric acid.Use Na ₂SO ₄Dried residue, evaporation and chromatographic separation (ether-hexane 1:3) obtain 1.25 gram pure products, the about 0.2. of TLC Rf

D) preparation 1-O-stearyl, 2-O-(N-CBz-L-valyl), 3-O-pixyl glycerine

The product of step c) (237 milligrams, 0.39 mmole), CBz-L-Xie Ansuan (116 milligrams, 0.46 mmole), DCC (96 milligrams, 0.46 mmole) and DMAP (4.7 milligrams, 0.04 mmole) are dissolved in CH ₂Cl ₂In (4 milliliters).Under agitation, mixture keeps spending the night in the nitrogen atmosphere.Use the glass filter filtering mixt after 18 hours, obtaining productive rate by silicagel column (ether-hexane 1:4) chromatographic separation is 230 milligrams, and TLC Rf is 0.2.

E) preparation 1-O-stearyl-2-O (N-CBz-L-valyl) glycerine

With the method that embodiment 3 describes, the pixyl group of removing by the selectivity deprotection in the product of step d) obtains title compound,

¹H-NMR(CDCl ₃)：δ7.35(m，5H)，5.3-4.9(m，4H)，4.35-4.25(m，3H)，3.8-3.6(m，2H)，2.31-2.25(m，2H)，2.20-2.10(m，1H)，1.60(m，2H)，1.02-0.86(m，9H)。

Embodiment 3

1-O-(N-CBz-L-valyl)-2-O-stearyl glycerine

A) preparation 1-O-(N-CBz-L valyl) glycerine

At room temperature, CBz-L-Xie Ansuan (4.35 grams, 17.3 mmoles), dicyclohexyl carbodiimide (4.29 grams, 20.8 mmoles) and 4-dimethylaminopyridine (0.212 gram) are joined (8 milliliters, 86.9 mmoles) in five times of excessive glycerine together.After stirring was spent the night, filtering suspension liquid was removed DMF in a vacuum from filtrate.Resistates is dissolved in CH ₂Cl ₂In, use saturated NaHCO continuously ₃, salt solution and water washing, dry then.Crude product carries out chromatogram purification with the 4/1EtOAc-hexane as elutriant on silica gel, output is 2.465 grams, Rf (4/1EtOAc-hexane) 0.17, (20/1CH ₂Cl ₂-methyl alcohol) 0.12.

B) preparation 1-O-(N-CBz-L-valyl)-3-O-pixyl glycerine

Under nitrogen, product (0.672 gram with step a), 20.1 mmole) be dissolved in the dried pyridine (3.5 milliliters). add 9-chloro-9-phenyl xanthene (as above Zhi Bei pixyl muriate, 0.65 gram, 22.0 mmole, 1.1 equivalent), mixture at room temperature stirred 1.5 hours. add MeOH (1.5 milliliters), with mixture at 10 milliliters of Et ₂O and 10 milliliters of saturated NaHCO ₃Between distribute.The more extracted with diethyl ether of water layer merges organic layer, and is dry and for several times concentrated with toluene, obtains white solid.Crude product carries out chromatogram purification with 3/1 hexane-EtOAc as elutriant on silica gel, obtain 0.681 gram.

The pixyl group also can be by Gaffney etc., and at Tetrahedron Lett 1997,38, the step that 2539-2542 describes is carried with PxOH and acetate.

C) preparation 1-O-(N-CBz-L-valyl)-2-O-stearyl-3-O-pixyl glycerine

At ice bath, in the nitrogen, drip at 1.5 milliliters of CH in 11 milliliters of pyridine solutions of the following product of stirring (0.658 gram, 1.13 mmoles) to step b) ₂Cl ₂In stearyl chloride (496 milliliters, 1.3 equivalents).After 15 minutes, mixture at room temperature stirs and spends the night. and mixture is with 20 milliliters of Et ₂O dilution, and with 10 milliliters of saturated NaHCO ₃Washing. use more Et ₂The O aqueous layer extracted merges organic layer, with salt solution (20 milliliters) washing, Na ₂SO ₄Drying, and with toluene concentrate for several times, crude product (1.37 gram) carries out chromatogram purification with 6/1 hexane-EtOAc on 130 gram silica gel.Get 500 milliliters for first section, respectively get 100 milliliters subsequently, required material is wash-out in the 2-5 section, output 0.748 gram.

D) preparation 1-O-(N-CBz-L-valyl)-2-O-stearyl glycerine

At room temperature, to the CH that is dissolved in 35 milliliters ₂Cl ₂The 0.025M solution of product (0.748 gram, 872 mmoles) of step c) in add pyrroles's (16.5 molar equivalent) and dichloro acetic acid (5.5 molar equivalent).TLC demonstration reaction is finished after 5 minutes.Mixture is with 300 milliliters of CH ₂Cl ₂Dilution, and with 30 milliliters of saturated NaHCO ₃Washing.The more CH of water layer ₂Cl ₂Extraction.Merge organic phase, with salt solution (30 milliliters) washing, Na ₂SO ₄Dry and concentrated.Crude product carries out chromatogram purification with 2/1 hexane-EtOAc (containing 0.3% acetate) as elutriant with silica gel, output 0.363 gram, Rf (2/1 hexane-EtOAc) 0.21,

¹H NMR(CDCl ₃)δppm0.86-0.99(m，9H)，1.25(s，28H)，1.61(m，2H)，2.16(m，1H)，2.32(m，2H)，3.74(br s，2H)，4.28-4.44(m，3H)，5.09(m，1H)，5.11(s，2H)，5.22(d，1H)，7.36(m，5H)。

Embodiment 4

1-O-stearyl-3-O-(N-CBz-L-valyl) glycerine

Embodiment 2 parts product (2.86 grams, 7.99 mmoles), DCC (0.9 gram, 4.36 mmoles), 4-(N, N-dimethyl) aminopyridine (DMAP) (0.048 gram, 0.39 mmole) and N-CBz-L-Xie Ansuan (1 gram, 3.98 mmoles) a) is dissolved in CH ₂Cl ₂Among (60 milliliters) and the DMF (6 milliliters).Be reflected under the envrionment temperature and placed 18 hours, filter then, the vapourisation under reduced pressure solvent, resistates is dissolved in CH ₂Cl ₂Also filter in (100 milliliters).Thick title compound chromatogram [SiO ₂, ether/hexane (1:2)] and purifying, obtain the required product of 1.3 grams. unreacted 1-stearyl glycerine can be used CH ₂Cl ₂/ MeOH (20:1) wash-out reclaims,

¹H-NMR(CDCl ₃)：δ5.25(d，1H)，5.11(s，2H)，4.30-4.05(m，6H)，2.65(d，1H)，2.35(t，2H)，2.06(m，1H)，1.62(m，2H)，1.26(s，28H)，1.00-0.84(m，9H).

Embodiment 5

Anhydrous CH to ice-cooled chloroformic acid 1-chloro-ethyl ester (1.89 grams, 13.2 mmoles) ₂Cl ₂Be added in CH in the solution of (5 milliliters) ₂Cl ₂Embodiment 4 compounds in (20 milliliters) add anhydrous pyridine (1.2 milliliters, 29.6 mmoles) then.Stirred reaction mixture under the cooling shows that until TLC (ether/hexane 1:2) raw material exhausts in argon gas atmosphere.1.5 after hour, mixture water (3 * 5 milliliters), saturated NaHCO ₃(5 milliliters) washing and dry (Na ₂SO ₄).With chromatogram [SiO ₂, ether/hexane (1:2)] and purifying, obtain title compound (4.0 gram),

¹H-NMR(CDCl ₃)：δ7.36-7.32(m，5H)，6.40(m，1H)，5.24(m，1H)，5.11(s，2H)，4.30(m，6H)，2.32(m，2H)，2.15(m，1H)，1.82(m，3H)，1.60(m，2H)，1.25(br s，28H)，0.97(m，3H)，0.86(m，6H).

Embodiment 6

In anhydrous acetonitrile (47 milliliters) solution of the compound of embodiment 5 (3.4 grams, 4.87 mmoles), add sodium iodide (3.65 grams, 24.3 mmoles).The solution that obtains refluxes under argon gas atmosphere after NMR shows that raw material exhausts .4.5 hour, adding ether (50 milliliters) and filtering mixt. evaporation removes and desolvates, and crude product is dissolved in the ether (50 milliliters). diethyl ether solution water (2 * 10 milliliters) washing and dry (Na ₂SO ₄), vapourisation under reduced pressure.With chromatogram [SiO ₂, ether/hexane (1:2)] and purifying, obtain title compound (2.15 gram),

¹H-NMR(CDCl ₃)：δ7.37(m，5H)，6.75(m，1H)，5.22(m，1H)，5.15(s，1H)，4.3(m，6H)，2.32(m，1H)，2.22(m，2H)，1.6(m，2H)，1.25(s，28H)，0.95(m，9H).

Embodiment 7

At ice bath, in the argon gas, stir 2.2 milliliters of anhydrous methylene chloride solution of cooling embodiment 3 compounds (810 milligrams, 1.37 mmoles) down.Add chloroformic acid 1-chloro-ethyl ester (298 microlitres, 2.74 mmoles), drip 2.5 milliliters of pyridines (665 microlitres, 8.22 mmoles) in the methylene dichloride again.2.5 after hour, mixture dilutes with 25 milliliters of methylene dichloride, and continuously with 10 ml waters and the washing of 10 mL of saline.Organic phase concentrates with anhydrous sodium sulfate drying and with toluene and obtains yellow oil for several times.On silica gel, obtain oily title compound (96 milligrams, quantitative yield) with flash column chromatography with 40/1 methylene dichloride-diethyl ether purifying.

¹H-NMR(CDCl ₃)：δppm 0.85-0.98(m，9H)，1.25(s，28H)，1.60(m，2H)，1.83(d，3H，J＝5.8Hz)，2.17(m，1H)，2.31(t，2H)，4.19-4.48(m，5H)，5.11(s，2H)，5.22(d，1H)，5.27(m，1H)，6.38-6.43(m，1H)，7.36(m，5H)。

Embodiment 8

Under nitrogen, the acetonitrile solution (27 milliliters) of the compound of embodiment 7 (1.896 grams, 2.71 mmoles) and sodium iodide (1.80 grams, 12.0 mmoles) is after 80 ℃ of backflow .4.5 hours, reaction mixture dilutes with 100 milliliters of 1/1 hexanes-diethyl ether, and washs with 25 ml waters.More multi-solvent (25 milliliters) extraction of water, merge organic phase, continuously with 5% sodium thiosulfate solution (25 milliliters) and salt solution (25 milliliters) washing, use anhydrous sodium sulfate drying, and under vacuum, concentrate. on silica gel, obtain containing the oil (1.45 gram) of 90% title compound and 10% embodiment, 7 compounds as the elutriant purifying with 80/1 methylene chloride-methanol with flash column chromatography

¹H-NMR(CDCl ₃)：δppm0.85-0.99(m，9H)，1.25(s，28H)，1.60(m，2H)，2.17(m，1H)，2.23(d，3H，J＝6Hz)，2.31(t，2H)，4.16-4.49(m，5H)，5.10(s，2H)，5.20-5.29(m，2H)，6.69-6.79(m，1H)，7.36(m，5H)。

Embodiment 9

4-benzyloxy-2-(N-trityl-L-valyl oxygen ylmethyl)-1-stearoyl-oxy butane

A) synthetic diethyl-2-(2-benzyloxy ethyl) malonic ester

Add 10 milliliters of ethanolic solns of diethyl malonate (6.4 grams, 40 mmoles) in 50 milliliters of ethanolic solns of freshly prepd sodium (0.95 gram, 41.4 mmoles), mixture stirred 15 minutes.Be added dropwise to 2-benzyloxy-1-iodoethane (11.5 grams, 41.35 mmoles) solution then.Mixture refluxed 4 hours, in a vacuum evaporation.The water that adds 100 milliliters, mixture extracts three times with 50 milliliters diethyl ether, and organic phase dried over sodium sulfate, and evaporation are in a vacuum used the silica gel column chromatography separated product, productive rate: 8.6 grams,

¹H-NMR(CDCl ₃)：1.26(m，6H)2.26(m，2H)3.54(m，3H)4.16(m，4H)4.57(s，2H)7.32(m，5H)。

B) synthetic 4-benzyloxy-2-methylol-butanols-1.

At about 15 ℃, in the suspension of 100 milliliters of diethyl ether of the lithium aluminum hydride that stirs (3.0 grams, 80 mmoles), drip 20 milliliters of diethyl ether solutions of diethyl-2-(2-benzyloxy ethyl) malonic ester (8.5 grams, 28.8 mmoles).Mixture refluxed 2 hours, and cooling drips about 4 ml waters down, and filtering mixt and Yong diox wash.Vapourisation under reduced pressure filtrate is used the silica gel column chromatography separated product, output 3.4 grams,

¹H-NMR(CDCl ₃)：1.60(m，2H)1.82(m，1H)3.00(m，2H)3.56(t，2H)3.69(m，4H)4.50(s，2H)7.32(m，5H)。

C) synthetic 4-benzyloxy-2-(N-trityl-L-valyl oxygen ylmethyl)-butanols-1

To N-trityl-L-Xie Ansuan (4.66 grams, 13 mmoles) and 4-benzyloxy-2-methylol-butanols-1 (3.3 the gram, 15.6 add DCC (3.0 grams, 14.5 mmoles) and DMAP (0.18 gram, 1.45 mmoles) in 50 milliliters of dichloromethane solutions mmole).Mixture stirred three days, and mixture is cooled to 5 ℃, filtered urethane. the solution vapourisation under reduced pressure, use the silica gel column chromatography separated product, and output 2.5 grams,

¹H-NMR(CDCl ₃)：1.00(m，6H)1.55(m，4H)1.72(m，1H)2.18(m，1H)2.70(m，1H)3.27(m，2H)3.43(m，3H)4.50(s，2H)7.26(m，20H).

D) synthetic 4-benzyloxy-2-(N-trityl-L-valyl oxygen ylmethyl)-1-stearoyl-oxy butane

In 50 milliliters of dichloromethane solutions of 4-benzyloxy-2-(N-trityl-L-valyl oxygen ylmethyl)-butanols-1 (2.4 grams, 4.35 mmoles), add pyridine (1.72 grams, 21.7 mmoles).Solution is cooled to 10 ℃, between 10～15 ℃, drip stearyl chloride (2.64 grams, 8.7 10 milliliters of dichloromethane solutions mmole). at room temperature mixture stirs and spends the night. add 100 milliliter of 5% sodium hydrogen carbonate solution, mixture stirred 30 minutes. separate organic phase, with twice of dichloromethane extraction water. the organic phase dried over sodium sulfate of merging, and concentrate in a vacuum. use the silica gel column chromatography separated product, output 3.0 grams

¹H-NMR(CDCl ₃)：0.98(m，9H)1.26(m，28H)1.54(m，2H)1.94(m，1H)2.25(m，2H)3.23(m，2H)3.44(m，2H)3.58(m，1H)3.91(m，2H)4.10(m，1H)4.47(s，2H)7.28(m，20H)。

Embodiment 10

5-(N-trityl-L-valyl oxygen ylmethyl)-6-stearoyl-oxy caproic acid

A prepares 2-allyl group 1, ammediol

To drop in lithium aluminum hydride (9.6 grams, the 253 mmoles) solution of stirring at the allyl diethyl malonate in the anhydrous diethyl ether (100 milliliters) (20 milliliters, 101 mmoles) at 0 ℃. reaction is heated to room temperature, and keeps 5 hours.Be cooled to 0 ℃, carefully drip water (12 milliliters).Stir after 30 minutes, by the Celite filtering mixt, use ethanol (2 * 500 milliliters) washing then, drying solution obtains 9.5 gram products under vacuum,

¹H-NMR(CDCl ₃)：5.78(m，1H)，5.03(m，2H)，3.78(m，2H)，3.69(m，2H)，2.06(t，2H)，1.87(m，1H)。

B) preparation 1-O-(N-trityl-L-valyl)-2-allyl group-1, ammediol

To N-trityl-L-Xie Ansuan (5.5 grams, 15.2 mmoles), 2-allyl group-1,3 propylene glycol (4.4 grams, 38 mmoles), N, add DCC (3.5 grams, 16.7 mmoles) in methylene dichloride (120 milliliters) solution of N-dimethyl aminopyridine (183 milligrams, 1.5 mmoles).Being reflected at refluxes keeps spending the night down.After the Celite filtration, organic phase is also dry with the sodium bicarbonate aqueous solution washing.Silica gel column chromatography obtains 4.6 gram intermediate 1-O-(N-trityl-L-valyl)-2-allyl groups-1, ammediol.

C) preparation 1-O-(N-trityl-L-valyl)-2-allyl group-3-stearyl-1, ammediol

At 0 ℃, to 1-O-(N-trityl-L-valyl)-2-allyl group-1, (3.2 milliliters of the methylene dichloride (40 milliliters) of ammediol (1.83 grams, 4 mmoles) and pyridines, 40 mmoles) stearyl chloride (3.62 grams, 12 mmoles) of dropping in methylene dichloride in the solution.Solution is heated to room temperature and kept 3 hours, with sodium bicarbonate aqueous solution washing and dry, and with silica gel column chromatography separated product 1.9 grams,

¹H-NMR(CDCl ₃)：7.30(m，15H)，5.70(m，1H)，4.99(m，2H)，3.93(m，2H)，3.55(m，1H)，3.27(m，2H)，2.68(m，1H)，2.30(m，2H)，2.33(m，1H)，2.01(m，2H)，1.85(m，1H)，1.62(m，2H)，1.3(m，28H)，0.98(dd，6H)，0.91(t，3H)。

D) preparation 3-(N-trityl-L-valyl oxygen ylmethyl)-4-stearoyl-oxy-butyraldehyde

With 1-O-(N-trityl-L-valyl)-2-allyl group-3-stearyl-1, ammediol (580 milligrams, 0.8 mmole) is dissolved in the diox (5 milliliters).In solution, add perosmic anhydride (20 milligrams, 0.08 mmole) and pyridine (0.05 milliliter, 0.64 mmole).Water (3.5 milliliters) solution of sodium periodate is added in the reaction mixture.Reaction keeps spending the night, and is cooled to 0 ℃ then.Add sulfurous acid acid hydrogen sodium water solution, use the dichloromethane extraction mixture.Dry organic phase is also used silica gel chromatography, 250 milligrams of productive rates,

¹H-NMR(CDCl ₃)：9，68(s，1H)，7.25(m，15H)，3.92(m，2H)，3.58(m，1H)，2.32(m，2H)，2.68(m，1H)，2.34(m，7H)，1.58(m，2H)，1.53(m，28H)，0.96(dd，6H)，0.86(t，3H)。

F) preparation 3-(N-trityl-L-valyl oxygen ylmethyl)-4-stearoyl-oxy hexene-2-acid benzyl ester

To 3-(N-trityl-L-valyl oxygen ylmethyl)-4-stearoyl-oxy-butyraldehyde (15.8 grams, 21.8 add (benzyloxycarbonyl methyl) tri-phenyl-phosphorus bromide (10.7 grams in dichloromethane solution mmole), 21.8 mmole) and triethylamine (2.21 gram, 21.8 mmoles).Reaction at room temperature keeps spending the night and evaporating mixture.In resistates, add diethyl ether (200 milliliters), and kept two hours at 4 ℃.Filter then, evaporated filtrate, the product silica gel chromatography, output 10 grams,

¹H-NMR(CDCl ₃)：7.30(m，20H)，6.89(m，1H)，5.88(d，1H)，5.19(d，2H)，3.95(m，2H)，3.57(m，1H)，3.29(2H)，2.68(m，1H)，2.23(m，5H)，1.93(m，1H)，1.60(m，2H)，1.32(m，28H)，0.95(dd，6H)，0.89(t，3H).

G) preparation 3-(N-trityl-L-valyl oxygen ylmethyl)-4-stearoyl-oxy capronate

In the methyl alcohol (3 milliliters) of 3-(N-trityl-L-valyl oxygen ylmethyl)-4-stearoyl-oxy hexene-2-acid benzyl ester (70 milligrams, 0.08 mmole) and ethyl acetate (1 milliliter) solution, add sodium bicarbonate (10 milligrams) and palladium black (20 milligrams).Be reflected at hydrogen, normal atmosphere kept 2 hours down.Filtering mixt and evaporation.Be dissolved in the methylene dichloride resistates and the continuous EDTA aqueous solution and the 2% cold lemonade solution washing used, the evaporation organic phase obtains 61 milligrams of products,

¹H-NMR(CDCl ₃)：7.30(m，15H)，3.93(m，2H)，3.57(m，1H)，3.25(m，2H)，2.30(dt，4H)，2.20(m，1H)，1.70(m，1H)，1.62(m，4H)，1.30(m，28H)，0.95(dd，6H)，0.87(t，3H)。

Embodiment 11

3-(N-benzyloxycarbonyl-L-valyl oxygen ylmethyl)-4-stearoyl-oxy-butyric acid

A) preparation 1-O-(N-benzyloxycarbonyl-L-valyl)-2-allyl group-1, ammediol

To 2-allyl group-1, ammediol (4.6 grams, 40 mmoles) and add dimethyl aminopyridine (244 milligrams, 2 mmoles) and DCC in the dichloromethane solution of N-benzyloxycarbonyl-L-Xie Ansuan (5.02 gram, 20 mmoles) (4.5 restrain, 22 mmoles). after two hours, use the Celite filtering mixt, evaporation, separated product 1-O-(N-benzyloxycarbonyl-L-valyl)-2-allyl group-1, ammediol, output 5.01 grams.

¹H-NMR(CDCl ₃)：7.36(m，5H)，5.78(m，1H)，5.26(d，1H)，5.11(s，2H)，5.06(d，2H)，4.22(m，3H)，3.59(m，2H)，2.13(m，3H)，1.98(m，2H)，0.94(dd，6H)。

B) preparation 1-O-(N-benzyloxycarbonyl-L-valyl)-2-allyl group-3-O-stearyl-1, ammediol

In ice bath, to 1-O-(N-benzyloxycarbonyl-L-valyl)-2-allyl group-1, (6.1 milliliters of the methylene dichloride (70 milliliters) of ammediol (4.46 grams, 12.7 mmoles) and pyridines, 76 mmoles) add stearyl chloride (7.8 grams, 26 mmoles) in the solution.Reaction mixture is heated to room temperature and kept one hour. pours into then in the sodium bicarbonate aqueous solution, and dry organic phase, with silica gel chromatography product 1-O-(N-benzyloxycarbonyl-L-valyl)-2-allyl group-3-O-stearyl-1, ammediol 6.7 grams,

¹H-NMR(CDCl ₃)：7.34(m，5H)，5.77(m，1H)，5.30(d，1H)，5.11(s，2H)，5.08(d，2H)，4.32(m，1H)，4.10(m，4H)，2.29(t，2H)，2.13(m，4H)，1.62(m，3H)，1.25(m，28H)，0.90(m，9H)。

C) preparation 3-(N-benzyloxycarbonyl-L-valyl oxygen ylmethyl)-4-stearoyl-oxy-butyric acid

Potassium permanganate (756 milligrams, 4.8 mmoles) is dissolved in the water (7.5 milliliters).This solution kept 10 minutes under vigorous stirring.Be added in 1-O-(N-benzyloxycarbonyl-L-the valyl)-2-allyl group-3-O-stearyl-1 in the benzene (5 milliliters), ammediol (1 gram, 1.6 mmole) and bromination tetrabutylammonium (77 milligrams, 0.24 mmole) solution. slurries stirred 1.5 hours, added methylene dichloride.The acidic sulfurous acid sodium water solution joined in the slurries fade until mixture.Organic phase acetate acidifying, and wash with water.After the evaporation, with silica gel column chromatography separated product 3-(N-benzyloxycarbonyl-L-valyl oxygen ylmethyl)-4-stearoyl-oxy-butyric acid (390 milligrams),

¹H-NMR(CDCl ₃)：7.33(m，5H)，5.38(d，1H)，5.11(s，2H)，4.14(m，5H)，2.60(m，1H)，2.45(m，2H)，2.29(t，2H)，2.18(m，1H)，1.58(m，2H)，1.25(m，28H)，0.90(m，9H).

Embodiment 12

2' 3' -two deoxidations-3' -fluoro-5' -O-[5-(L-valyl oxygen ylmethyl)-6-stearoyl-oxy hexanoyl Base] guanosine

A) preparation 2 ' 3 '-two deoxidations-3 '-fluoro-5 '-O-[5-(N-trityl-L-valyl oxygen ylmethyl)-6-stearoyl-oxy caproyl] guanosine

To (462 milligrams of 5-(N-trityl-L-valyl oxygen ylmethyl)-6-stearoyl-oxy caproic acid, 0.6 mmole) and 2 ' 3 '-two deoxidations-3 '-(340 milligrams of fluorine guanosines, 1.25 add (7 milligrams of dimethyl aminopyridines in DMF mmole) (3 milliliters) solution, 0.06 mmole) and DCC (136 milligrams, 0.66 mmole).Reaction at room temperature keeps spending the night, and keeps 2 hours at 40 ℃ then.Use the Celite filter reaction mixture; and pour in the methylene dichloride; wash with sodium bicarbonate aqueous solution. by silica gel column chromatography separated product 2 ' 3 '-two deoxidations-3 '-fluoro-5 '-O-[5-(N-trityl-L-valyl oxygen ylmethyl)-6-stearoyl-oxy caproyl] guanosine (93 milligrams)

¹H-NMR(DMSO d-6)：7.88(s，1H)，7.29(m，15H)，6.52(s，2H)，6.17(dd，1H)，5.45(m，1H)，4.35(m，1H)，4.20(m，2H)，3.82(m，2H)，3.502.60(m，5H)，2.30(m，4H)，2.10(m，1H)，1.70(m，1H)，1.50(m，4H)，1.22(m，28H)，0.85(m，9H)。

B) preparation 2 ' 3 '-two deoxidations-3 '-fluoro-5 '-O-[5-(L-valyl oxygen ylmethyl)-6-stearoyl-oxy caproyl] guanosine

At room temperature, by handling 30 minutes, with the N protection of the compound (90 milligrams, 0.088 mmole) of sloughing step b) with 80% acetate (5 milliliters). evaporation, the product silica gel chromatography obtains 72 milligrams of title compounds,

¹H-NMR(DMSO d-6)：7.88(s，1H)，6.54(s，2H)，6.18(dd，1H)，5.48(dd，1H)，4.27(dt，1H)，4.19(m，2H)，3.98(m，4H)，3.17-2.55(m，4H)，2.29(m，4H)，1.95(m，1H)，1.75(m，1H)，1.50(m，4H)，1.21(m，28H)，0.84(m，9H).

Embodiment 13

2' 3' -two deoxidations-3' -fluoro-5' -O-[3-(L-valyl oxygen ylmethyl)-4-stearoyl-oxy butyryl Base] guanosine

A) preparation 2 ' 3 '-two deoxidations-3 '-fluoro-5 '-O-[3-(N-benzyloxycarbonyl-L-valyl oxygen base)-4-stearoyl-oxy butyryl] guanosine

To 2 ' 3 '-two deoxidations-3 '-(113 milligrams of fluorine guanosines, 0.42 mmole) and 3-(N-benzyloxycarbonyl-L-valyl oxygen ylmethyl)-(140 milligrams of 4-stearoyl-oxy-butyric acid, 0.21 add (3 milligrams of dimethyl aminopyridines in DMF mmole) (2 milliliters) solution, 0.02 mmole) and (52 milligrams of DCC, 0.25 mmole). two days later, add methylene dichloride (10 milliliters) and several acetate, filter organic phase with Celite.Filtrate is washed with sodium bicarbonate aqueous solution, usefulness silica gel column chromatography separated product 2 ' 3 '-two deoxidations-3 '-fluoro-5 '-O-[3-(N-benzyloxycarbonyl-L-valyl oxygen ylmethyl)-4-stearoyl-oxy-butyryl] guanosine, 51 milligrams of output,

¹H-NMR(CDCl ₃)：7.79(d，1H)，7.26(m，5H)，6.38(s，2H)，6.23(t，1H)，5.44(m，2H)，5.08(s，2H)，4.50-4.10(m，8H)，3.15-2.40(m，5H)，2.30(t，2H)，2.14(m，1H)，1.58(m，2H)，1.24(m，28H)，0.87(m，9H)。

B) preparation 2 ' 3 '-two deoxidations-3 '-fluoro-5 '-O-[3-(L-valyl oxygen ylmethyl)-4-stearoyl-oxy butyryl] guanosine

The product of step a) (76 milligrams, 0.084 mmole) is dissolved in the mixed solvent of methyl alcohol (3 milliliters), ethyl acetate (0.5 milliliter) and acetate (0.01 milliliter).In this solution, add palladium black (10 milligrams), after 2 hours, add 10 milligrams of palladium blacks again.After 3 hours, filtering mixt also evaporates, and resistates is dissolved in also uses the EDTA solution washing in the methylene dichloride.Dry organic phase and and the toluene coevaporation obtain the acetate of title compound, 65 milligrams of output,

¹H-NMR(DMSO d-6+D ₂O)：7.87(s，1H)5.16(dd，1H)，5.37(dd，1H)，4.24(m，3H)，4.01(m，4H)，3.10-2.60(m，3H)，2.40(m，2H)，2.24(t，2H)，1.70(m，1H)，1.48(m，2H)，1.25(m，28H)，0.82(m，9H)。

Embodiment 14

Chloroformic acid 3-[1-(N-CBz-L-valyl)-2-stearyl] propyl diester

1-(N-CBz-L-valyl)-2-stearyl glycerine (300 milligrams, 0.5 mmole) is dissolved in the toluene (15 milliliters) of 20% phosgene.After 18 hours, evaporating solns, resistates and toluene coevaporation have quantitatively obtained title product for several times.This product and target nucleosides generate carbonic ether with ordinary method, and for example at 0 ℃, reaction is 3-24 hour in the 10:1DMF/ pyridine solution, is injected into NaHCO ₃In the solution, use dichloromethane extraction. the amino acid deprotection, for example use methyl alcohol, ethyl acetate, the acetic acid solution of palladium black, to obtain nucleosides-O-[1-(L-valyl)-2-stearyl-3-propoxycarbonyl],

¹H-NMR(CDCl ₃)：7.40(m，5H)，5.28(m，2H)5.10(s，2H)，4.35(m，5H)，2.35(m，2H)，2.17(m，1H)，1.56(m，2H)，1.30(m，28H)，0.95(m，9H)。

Embodiment 15

5-(N-FMOC-L-valyl oxygen base)-4-stearoyl-oxy-valeric acid

A) 4,5-dihydroxyl-2-amylene acid benzyl ester

DL-Glycerose (4.5 gram, 50 mmoles) and (benzyloxycarbonyl methyl)-triphenyl-bromo-phosphonium (24.57 grams, 50 mmoles) 100 milliliter 1, the mixture backflow of 2-butylene oxide ring is spent the night.The vaporising under vacuum mixture is used the silica gel column chromatography separated product, productive rate 8 grams=71%,

¹H-NMR(CDCl ₃)：2.50(s，1H)2.96(s，1H)3.54(m，1H)3.70(m，1H)4.38(m，1H)5.12(s，2H)6.14(m，1H)6.90(m，1H)7.30(m，5H)。

B) 5-(N-FMOC-L-valyl oxygen base)-4-hydroxyl-2-amylene acid benzyl ester

4,100 milliliters of dichloromethane mixture of 5-dihydroxyl-2-amylene acid benzyl ester (4.4 grams, 20 mmoles), N-FMOC-L-Xie Ansuan (5.8 grams, 17 mmoles) and DMAP (0.21 gram, 1.7 mmoles) are cooled to about 10 ℃.Drip 25 milliliters of dichloromethane solutions of DCC (4.2 grams, 20 mmoles) under uniform temp, mixture at room temperature stirs and spends the night.Mixture is cooled to 5 ℃, filters urethane.Vapourisation under reduced pressure filtrate, use the silica gel column chromatography separated product, productive rate: 6.6 grams=71%,

¹H-NMR(CDCl ₃)：0.91(m，6H)2.12(m，1H)4.38(m，5H)，5.14(s，2H)5.24(m，1H)6.20(m，1H)6.92(m，1H)7.30(m，13H)。

C) 5-(N-FMOC-L-valyl oxygen base)-4-stearoyl-oxy-2-amylene acid benzyl ester

At 10 ℃, to 5-(N-FMOC-L-valyl oxygen base)-4-hydroxyl-2-amylene acid benzyl ester (6.5 grams, 12 mmoles) and pyridine (2.0 the gram, 25 mmoles) drip stearyl chloride (4.55 grams in 100 milliliters of dichloromethane solutions, 15 mmoles) 25 milliliters of dichloromethane solutions, mixture stirs and spends the night. and add 100 milliliter of 5% sodium hydrogen carbonate solution, mixture stirred 30 minutes. separate organic phase, with twice aqueous phase extracted of methylene dichloride.With the organic phase of dried over sodium sulfate merging, and under vacuum, concentrate.Use the silica gel column chromatography separated product.Productive rate: 7.8 grams=80%,

¹H-NMR(CDCl ₃)：0.88(m，9H)1.25(m，28H)1.58(m，2H)2.14(m，1H)2.32(m，2H)4.22(m，5H)5.19(s，2H)5.25(m，1H)6.12(m，1H)6.85(m，1H)7.35(m，13H)。

D) 5-(N-FMOC-L-valyl oxygen base)-4-stearoyl-oxy-valeric acid

Room temperature, under the normal pressure, 5-(N-FMOC-L-valyl oxygen base)-4-stearoyl-oxy-2-amylene acid benzyl ester (3.8 grams, 4.69 50 milliliters of ethyl acetate solutions mmole) were with 10% palladium charcoal (0.5 gram) hydrogenation 5 hours. filtering catalyst, with ethyl acetate and 1, the washing of 4-diox, vapourisation under reduced pressure solution, productive rate 3.3 grams=99%

¹H-NMR(CDCl ₃)：0.92(m，9H)1.25(m，28H)1.54(m，2H)1.98(m，2H)2.18(m，1H)2.28(m，2H)2.41(m，2H)4.32(m，5H)5.13(m，1H)5.33(m，1H)7.50(m，8H)。

Embodiment 16

3-(N-FMOC-L-valyl oxygen base)-2-stearoyl-oxy propionic acid

A) 2,3-dihydroxypropionic acid benzyl ester

D, 25 milliliters of DMF mixtures of L-R-Glyceric acid calcium salt dihydrate (2.9 grams, 10 mmoles) and bromotoluene (3.8 grams, 22 mmoles) spend the night 60 ℃ of stirrings. the vapourisation under reduced pressure mixture, use the silica gel column chromatography separated product, and productive rate 4 grams=100%,

¹H-NMR(CDCl ₃)：3.26(s，1H)3.90(m，2H)4.32(m，1H)5.25(s，2H)7.28(m，5H)。

B) 3-(N-FMOC-L-valyl oxygen base)-2 hydroxy propanoic acid benzyl ester

2,80 milliliters of dichloromethane solutions of 3-dihydroxypropionic acid benzyl ester (4.0 grams, 20 mmoles), N-FMOC-L-Xie Ansuan (5.4 grams, 16 mmoles) and DMAP (0.2 gram, 1.6 mmoles) are cooled to about 10 ℃.Drip 25 milliliters of dichloromethane solutions of DCC (4.12 grams, 20 mmoles) under uniform temp, mixture at room temperature stirs and spends the night.Mixture is cooled to 5 ℃, filters urethane.Vapourisation under reduced pressure solution is used the silica gel column chromatography separated product.Productive rate 4.7 grams=45%

¹H-NMR(CDCl ₃)：0.88(m，6H)2.05(m，1H)4.40(m，6H)5.23(m，3H)7.50(m，13H)

C) 3-(N-FMOC-L-valyl oxygen base)-2-stearoyl-oxy benzyl propionate

To 3-(N-FMOC-L-valyl oxygen the base)-2 hydroxy propanoic acid benzyl ester that stirs (4.6 grams, 8.89 mmole) and pyridine (1.41 the gram, 17.8 drip stearyl chloride (3.64 grams in 80 milliliters of dichloromethane solutions mmole), 12 mmoles) 20 milliliters of dichloromethane solutions, mixture at room temperature stirs and spends the night.Add 100 milliliter of 5% sodium hydrogen carbonate solution, mixture stirred 30 minutes.Separate organic phase, with twice aqueous phase extracted of methylene dichloride. the organic phase that merges with dried over sodium sulfate, and concentrating in vacuum.Use the silica gel column chromatography separated product, productive rate 6.1 grams=87%,

¹H-NMR(CDCl ₃)：0.88(m，9H)1.26(m，28H)1.56(m，2H)2.06(m，1H)2.34(m，2H)4.36(m，6H)5.19(s，2H)5.32(m，1H)7.50(m，13H)

D) 3-(N-FMOC-L-valyl oxygen base)-2-stearoyl-oxy propionic acid

Room temperature, under the normal pressure, 20 milliliters of ethyl acetate solutions of 3-(N-FMOC-L-valyl oxygen base)-2-stearoyl-oxy benzyl propionate (0.78 gram, 1 mmole) were with 10% palladium charcoal (0.2 restrains) hydrogenation 3 hours.Filtering catalyst, with ethyl acetate and 1, the washing of 4-diox.Vapourisation under reduced pressure solution, productive rate 0.63 gram=90%,

¹H-NMR(CDCl ₃)：0.88(m，9H)1.24(m，28H)1.40(m，2H)2.12(m，3H)4.30(m，5H)5.16(m，1H)5.60(m，1H)7.40(m，8H)。

Embodiment 17

1-(N-benzyloxycarbonyl-L-valyl oxygen ylmethyl)-2-stearoyl-oxy ethoxy carbonyl chlorination Thing

Room temperature, stir down (160 milligrams of carbonic acid two (trichloromethyl) esters, 0.54 mmole) be added to (660 milligrams that 1-(N-benzyloxycarbonyl-L-valyl)-3-stearyl glycerine/1-(N-benzyloxycarbonyl-L-valyl oxygen base)-3-stearoyl-oxy-2-propyl alcohol/embodiment 4 prepares, 1.12 mmole) and in methylene dichloride (5 milliliters) solution of triethylamine (200 milligrams, 2.0 mmoles).After 1 hour, add normal hexane (10 milliliters), filter sedimentary Triethylammonium chloride through short silicagel column, product is used the normal hexane wash-out again, and evaporating solvent in a vacuum obtains the title compound of 650 milligrams (89%),

13C NMR (CDCl ₃, 62.975MHz): δ 172.8 (stea-COO), 171.2 (Val-COO), 155.9 (CONH), 154.1 (COCl), 136.0 (Ph- CL-Val), 128.1-127.7 (Ph), 67.2 (CHOH), 66.7 (PH CH2), 63.1 (ValCOO CH ₂), 61.8 (stea-COO CH ₂), 58.7 (Val-α C), 33.7 (stea-C2), 31.6 (stea-C16), 31.0 (Val-β C), 29.3-28.8 (stea-C4-15), 24.5 (stea-C3), 18.6 and 17.1 (Val 2 CH ₃), 13.8 (stea-C18).

Embodiment 18

Chloroformic acid 3-(N-CBz-L-valyl oxygen ylmethyl)-4-stearoyl-oxy butyl ester

A) 3-(N-CBz-L-valyl oxygen ylmethyl)-4-stearoyl-oxy butanols

Under 10 ℃; (N-CBz-L-valyl oxygen ylmethyl butyraldehyde is (by the method preparation that is similar to embodiment 6 to the 4-stearoyl-oxy-3-that stirs; steps d is protected Xie Ansuan with CBz) (2.0 grams; 3.2 a small amount of gradation ground adds sodium borohydride (0.6 gram, 16 mmoles) in 25 ml methanol solution mmole).Mixture stirred 30 minutes, used the acetate acidifying then.The mixture dilute with water is also used dichloromethane extraction three times.With dried over sodium sulfate organic phase and concentrated in a vacuum.Product separates with silica gel column chromatography.Productive rate 1.5 grams=75%,

¹H-NMR(CDCl ₃)0.88(m，9H)1.25(m，28H)1.52(m，4H)2.24(m，3H)3.68(m，2H)4.12(m，1H)4.24(m，1H)5.08(s，2H)5.22(m，1H)7.36(m，5H)

B) chloroformic acid 3-(N-CBz-L-valyl oxygen ylmethyl)-4-stearoyl-oxy butyl ester

The step intermediate a) stirs in the toluene solution of 20 milliliter of 20% phosgene and spends the night.The mixture vapourisation under reduced pressure obtains title compound, productive rate 1.5 grams=97%,

¹H-NMR(CDCl ₃)0.88(m，9H)1.28(m，28H)1.58(m，2H)1.72(m，2H)2.15(m，1H)2.31(m，2H)4.08-4.42(m，5H)5.10(s，2H)5.22(m，1H)7.36(m，5H)。

Embodiment 19

2' , 3' -two deoxidations-3' -fluoro-5' -O-[1-(L-valyl oxygen base)-2-stearoyl-oxy-3-third oxygen The base carbonyl] guanosine

A) Synthetic 2 ', 3 '-two deoxidations-3 '-fluoro-5 '-O-[1-(N-CBz-L-valyl oxygen base)-2-stearoyl-oxy-3-propoxycarbonyl] guanosine

At 0 ℃, to 2 ', 3 '-two deoxidations-3 '-add chloroformic acid 3-{1-(N-CBz-L-valyl)-2-stearyl in the DMF (10 milliliters) of fluorine guanosine (270 milligrams, 1 mmole) and pyridine (1 milliliter) solution } propyl ester (619 milligrams, 0.5 mmole).After 3 hours, reaction mixture is poured in the sodium hydrogen carbonate solution, and uses dichloromethane extraction.Organic phase is dry in a vacuum, with silica gel column chromatography separate 2 ', 3 '-two deoxidations-3 '-fluoro-5 '-O-[1-(N-CBz-L-valyl oxygen base)-2-stearoyl-oxy-3-propoxycarbonyl] guanosine (195 milligrams),

¹H-NMR(CDCl ₃)：7.69(s，1H)，7.31(m，5H)，6.50(m，2H)，6.32(m，1H)，5.3(m，2H)，5.09(m，2H)，4.35(m，7H)，2.60(m，2H)，2.31(t，2H)，2.20(m，1H)，1.58(m，2H)，1.23(m，28H)，0.92(m，9H)。

B) Synthetic 2 ', 3 '-two deoxidations-3 '-fluoro-5 '-O-[1-(L-valyl oxygen base)-2-stearoyl-oxy-3-propoxycarbonyl] guanosine

With 2 ', 3 '-two deoxidations-3 '-fluoro-5 '-O-[1-(N-CBz-L-valyl oxygen base)-2-stearoyl-oxy-3-propoxycarbonyl] guanosine (190 milligrams) is dissolved in the mixed solvent of methyl alcohol (6 milliliters), ethyl acetate (2 milliliters) and acetate (1 milliliter).Add palladium black (30 milligrams) in this solution, reaction mixture kept 2 hours under hydrogen, filtered then, and evaporated filtrate separates 110 milligrams of title product with silica gel column chromatography,

¹H-NMR(DMSO-δ6)：7.86(ds，1H)，6.51(s，2H)，6.17(dd，1H)，5.48(m，1H)，5.20(m，1H)，4.25(m，7H)，2.70(m，2H)，2.27(m，2H)，1.72(m，1H)，1.47(m，2H)，1.22(m，28H)，0.84(m，9H).

Embodiment 20

2' , 3' -two deoxidations-3' -fluoro-5' -O-[5-(L-valyl oxygen base)-4-stearoyl-oxy-pentanoyl] Guanosine

To 2 ', 3 '-two deoxidations-3 '-fluorine guanosine (0.27 gram, 1 mmole) and 5-(N-FMOC-L-valyl oxygen base)-4-stearoyl-oxy valeric acid (0.94 the gram, 1.3 add (16 milligrams of DMAP in 30 milliliters of DMF solution mmole), 0.13 HOBT (0.176 gram mmole),, 1.3 mmole) and DCC (0.248 gram, 1.2 mmoles).At room temperature stirred the mixture three days.Add 4 gram silica gel, evaporating mixtures in a vacuum.With silica gel column chromatography separated product 2 ', 3 '-two deoxidations-3 '-fluoro-5 '-O-[5-(FMOC-L-valyl oxygen base)-4-stearoyl-oxy-pentanoyl] guanosine, output 0.45 gram,

¹H-NMR(DMSO-δ6)：0.88(m，9H)1.20(m，28H)1.45(m，2H)1.78(m，2H)2.18(m，2H)2.36(m，1H)2.62(m，2H)3.88(m，1H)4.22(m，6H)4.92(m，1H)5.45(m，1H)6.19(m，1H)6.52(s，2H)7.26-7.88(m，8H)。

Protected intermediates such as above-mentioned method deprotection obtain title compound.

Embodiment 20

2' , 3' -two deoxidations-3' -fluoro-5' -O-[3-(N-FMOC-L-valyl oxygen base)-2-stearoyl-oxy- Propionyl] guanosine

DMF of adding and thionyl chloride (0.52 gram, 4.4 mmoles) to 5 milliliters of anhydrous diethyl ether mixtures of 3-(N-FMOC-L-valyl oxygen the base)-2-stearoyl-oxy propionic acid that stirs (0.61 gram, 0.88 mmole).Mixture refluxed two hours, then vapourisation under reduced pressure.Product is dissolved in the anhydrous methylene chloride and drip 2 ', 3 '-two deoxidations-3 '-20 milliliters of DMF solution of fluorine guanosine (0.215 gram, 0.8 mmole) and pyridine (0.35 restrains 4.4 mmoles) in.Solution stirring is spent the night.Add two gram silica gel, mixture evaporates in a vacuum.Use the silica gel column chromatography separated product, productive rate 0.19 gram=25%,

¹H-NMR(CDCl ₃)：0.88(m，9H)1.25(m，28H)1.62(m，2H)2.12(m，1H)2.38(m，2H)2.58(m，2H)4.12-4.76(m，6H)5.32(m，2H)6.12(m，1H)6.26(m，1H)6.44(m，1H)7.12-7.78(m，8H)。

Embodiment 21

Succinic Acid 1-(N-CBz-L-valyl)-3-stearyl-2-propyl group monoesters

1-(N-CBz-L-valyl)-3-stearyl glycerine (886 milligrams, 1.5 mmoles) and Succinic anhydried (450 milligrams, 4.5 mmoles) are dissolved in the mixed solvent of DMF (15 milliliters) and pyridine (1 milliliter).Reaction at room temperature kept 3 hours, kept 5 hours at 60 ℃ then.Reaction mixture is poured in the solution of acetate and water, and uses dichloromethane extraction.Wash organic phase with water, and evaporation, use the silica gel column chromatography separated product, 900 milligrams of output,

¹H-NMR(CDCl ₃)：7.43(m，5H)，5.27(m，1H)，5.09(m，2H)，4.21(m，5H)，2.54(m，4H)，2.29(t，2H)，2.13(m，1H)，1.59(m，2H)，1.25(m，28H)，0.90(m，9H)。

Embodiment 22

2' , 3' -two deoxidations-3' -fluoro-5' -O-{3-[1-(L-valyl oxygen base)-3-stearoyl-oxy-2- Propoxycarbonyl]-propionyl } guanosine

To 2 ', 3 '-two deoxidations-3 '-(351 milligrams of fluorine guanosines, 1.3 mmole) and Succinic Acid 1-(N-CBz-L-valyl)-3-stearyl-(900 milligrams of 2-propyl group monoesters, 1.3 add (24 milligrams of dimethyl aminopyridines in DMF mmole) (15 milliliters) solution, 0.2 mmole), I-hydroxybenzotriazole is (175 milligrams, 1.3 DCC (321 milligrams, 1.56 mmoles) mmole).After 48 hours, filter reaction mixture, filtrate is poured in the sodium hydrogen carbonate solution, and uses dichloromethane extraction.With silica gel column chromatography separated product 2 ', 3 '-two deoxidations-3 '-fluoro-5 '-O-{3-[1-(N-CBz-L-valyl)-3-stearyl-glycerine oxygen base carbonyl]-propionyl 780 milligrams of guanosines,

¹H-NMR(DMSO-d6)：7.89(s，1H)，7.34(m，5H)，6.50(s，2H)，6.17(dd，1H)，5.46(m，1H)，5.38(m，1H)，5.02(s，2H)，4.22(m，7H)，3.32(s，4H)，2.80(m，2H)，2.57(m，2H)，2.31(t，2H)，2.05(m，1H)，1.48(m，2H)，1.21(m，28H)，0.84(m，9H)。

To 2 '; 3 '-two deoxidations-3 '-fluoro-5 '-O-{3-[1-(N-CBz-L-valyl)-3-stearyl-2-propoxycarbonyl]-propionyl } (460 milligrams of guanosines; 0.5 add palladium black (50 milligrams) in the solution of the mixed solvent of methyl alcohol mmole) (10 milliliters), ethyl acetate (3 milliliters) and acetate (2 milliliters). reaction is after 2 hours under hydrogen atmosphere; filtering mixt; dried filtrate; with 360 milligrams of silica gel column chromatography separate targets products

¹H-NMR(DMSO-d6)：7.89(s，1H)，6.51(s，2H)，6.16(dd，1H)，5.48(m，1H)，5.17(m，1H)，4.28(m，7H)，2.90(m，2H)，2.58(m，4H)，2.28(t，2H)，1.85(m，1H)，1.49(m，2H)，1.22(m，28H)，0.85(m，9H).

Embodiment 23

At room temperature, with the CH of stearyl chloride (12.1 gram, 40 mmoles, 1.0 equivalents) ₂Cl ₂(100 milliliters) solution (1 hour) lentamente joins 2, in pyridine (400 milliliters) solution of 2-two (methylol) propionic acid (26.8 grams, 200 mmoles, 5.0 equivalents).Reaction mixture at room temperature stirs and spends the night, and concentrates under vacuum then (100 milliliters).Reaction mixture is slowly used saturated NaHCO ₃(400 milliliters) are handled, and use CH then ₂Cl ₂(3 * 300 milliliters) extraction.Merge organic phase, use the salt water washing, Na ₂SO ₄Drying, and concentrate in a vacuum.Crude product on silica gel (500 gram) with 19/1～4/1CH ₂Cl ₂-MeOH carries out chromatographic separation as eluent, obtains stearate monoesters, Rf (9/1CH ₂Cl ₂-MeOH) 0.33, productive rate 12.5 grams (78%).

CH with N-Cbz-L Xie Ansuan (18.85 grams, 75 mmoles, 2.4 equivalents) and DMAP (855 milligrams, 7 mmoles, 0.22 equivalent) ₂Cl ₂(800 milliliters) solution is cooled to 0 ℃, and handles with DCC (14.4 grams, 70 mmoles, 2.2 equivalents).Reaction mixture at room temperature stirred 30 minutes, and (1 hour) is with the CHCl of above-mentioned stearate monoesters (12.5 gram, 31.2 mmoles, 1 equivalent) then at leisure ₃(200 milliliters do not contain alcohol) solution-treated.After stirring was spent the night, filtering suspension liquid was used the salt solution wash filtrate, Na ₂SO ₄Drying, and concentrate in a vacuum.Crude product on silica gel (500 gram) with 19/1～4/1 CH ₂Cl ₂-MeOH carries out chromatogram purification as eluent, obtains above-mentioned diester, Rf (9/1 CH ₂Cl ₂-MeOH) 0.46, productive rate 13.8 grams (70%),

¹H-NMR(250MHz，CDCl ₃)：δ7.35-7.3(m，5H，ArH)，5.32(d，1H，CH)，5.10(s，2H，CH ₂Ph)，4.33-4.18(m，4H，CH ₂)，2.28(t，2H，CH ₂)，2.22-2.05(m，1H，CH)，1.65-1.50(m，2H，CH ₂)，1.35-1.15(m，31H)，1.00-0.82(m，9H，Me)。

Embodiment 24

A) Synthetic 2 ', 3 '-two deoxidations-3 '-fluoro-5 '-O-[5-(N-FMOC-L-valyl oxygen base)-4-stearoyl-oxy-pentanoyl] guanosine

2 ', 3 '-two deoxidations-3 '-(269 milligrams of fluorine guanosines, 1.0 mmole), 5-(N-FMOC-L-valyl oxygen base)-4-stearoyl-oxy-valeric acid is (940 milligrams, 1.3 mmole), DMAP is (16 milligrams, 0.13 mmole) and (176 milligrams of HOBT, 1.3 mmole) and DMF coevaporation secondary, reduce to 30 milliliters.Add DCC (248 milligrams, 1.2 mmoles), mixture at room temperature stirs and spends the night. filtering mixt, vapourisation under reduced pressure solution. add ethyl acetate (50 milliliters), with twice of 5% acetate, 5% sodium bicarbonate and water washing.With dried over sodium sulfate organic phase and vapourisation under reduced pressure.Use the silica gel column chromatography separated product.450 milligrams of output,

¹H-NMR(DMSO d-6)0.88(m，9H)1.22(m，28H)1.45(m，2H)1.83(m，2H)2.21(m，2H)2.37(m，1H)3.90(m，1H)5.36-5.58(m，1H)6.18(m，1H)6.50(s，2H)7.28-7.91(m，10H)。

B) Synthetic 2 ', 3 '-two deoxidations-3 '-fluoro-5 '-O-[5-(L-valyl oxygen base)-4-stearoyl-oxy-pentanoyl] guanosine

2 ', 3 '-two deoxidations-3 '-fluoro-5 '-O-[5-(N-CBZ-L-valyl oxygen base)-4-stearoyl-oxy-pentanoyl] 5 milliliters of N of guanosine (300 milligrams, 0.308 mmole), the mixture of N-diisopropylethylamine and 5 milliliters of DMF at room temperature stirred three days.Add acetate (5 milliliters), the mixture vapourisation under reduced pressure uses silica gel column chromatography with acetate isolated in form product, 90 milligrams of output,

¹H-NMR(DMSO d-6)0.88(m，9H)1.24(m，28H)1.55(m，2H)1.91(m，2H)2.31(m，2H)2.44(m，1H)2.56-3.08(m，2H)3.15(m，1H)4.00-4.49(m，5H)5.08(m，1H)5.40-5.62(m，1H)6.24(m，1H)6.54(s，2H)7.96(s，1H)。

Embodiment 25

2' , 3' -two deoxidations-3' -fluoro-5' -O-[3-(L-valyl oxygen base)-2-stearoyl-oxy-propionyl] Guanosine

A) Synthetic 2 ', 3 '-two deoxidations-3 '-fluoro-5 '-O-[3-(N-CBz-L-valyl oxygen base)-2-stearoyl-oxy-propionyl] guanosine

2 ', 3 '-two deoxidations-3 '-(404 milligrams of fluorine guanosines, 1.5 3-(N-CBZ-L-valyl oxygen base)-2-stearoyl-oxy-propionic acid (1.06 grams mmole),, 1.75 mmole), DMAP is (24 milligrams, 0.2 mmole) and (264 milligrams of HOBT, 1.82 mixture mmole) and DMF coevaporation secondary reduce to about 30 milliliters.Add DCC (372 milligrams, 1.8 mmoles), mixture at room temperature stirs and spends the night.Filtering mixt, vapourisation under reduced pressure solution.Add ethyl acetate (50 milliliters), with 5% acetate, 5% sodium bicarbonate and water washing organic phase twice, with dried over sodium sulfate organic phase and vapourisation under reduced pressure, by using the silica gel column chromatography separated product, productive rate 0.73 restrains,

¹H-NMR(DMSO d-6)0.82(m，9H)1.22(m，28H)1.48(m，2H)2.31(m，2H)2.50-3.00(m，2H)3.91(m，1H)4.18-4.52(m，5H)5.00(s，2H)5.30-5.61(m，2H)6.16(m，1H)6.50(s，2H)7.32(m，5H)7.71(m，1H)7.92(s，1H)10.18(s，1H)。

B) Synthetic 2 ', 3 '-two deoxidations-3 '-fluoro-5 '-O-[3-(L-valyl oxygen base)-2-stearoyl-oxy-propionyl] guanosine

2 '; 3 '-two deoxidations-3 '-fluoro-5 '-O-[3-(N-CBz-L-valyl oxygen base)-2-stearoyl-oxy-propionyl] (350 milligrams of guanosines; 0.4 the solution of ethyl acetate mmole) (25 milliliters), methyl alcohol (5 milliliters) and acetate (5 milliliters) is with palladium black (300 milligrams) hydrogenation three hours under normal pressure. filter catalyzer; with ethyl acetate and methanol wash. vapourisation under reduced pressure solution; with silica gel column chromatography with acetate isolated in form product; 120 milligrams of output

¹H-NMR(DMSO d-6)0.84(m，9H)1.22(m，28H)1.50(m，2H)2.32(m，2H)2.50-3.00(m，2H)3.07(m，1H)4.21-4.59(m，5H)5.38-5.59(m，2H)6.17(m，1H)6.0(s，2H)7.90(s，1H)。

Embodiment 26

2' , 3' -two deoxidations-3' -fluoro-5' -O-[3,3-two (L-valyl oxygen ylmethyl)-propionic acid] guanosine

A) synthesize 4,4-two (N-CBZ-L-valyl oxygen ylmethyl) but-1-ene

To 2-allyl group-1, ammediol (2.32 grams, 20 mmoles), N-CBZ-L-Xie Ansuan (10.06 grams, 40 mmoles) and DMAP (0.488 gram, 4 mmoles) add DCC (9.08 grams in 120 milliliters of dichloromethane solutions in batches, 44 mmoles), mixture at room temperature stirs and spends the night, and mixture is cooled to 5 ℃, filter urethane. evaporated filtrate, use the silica gel column chromatography separated product, output 9.0 grams

¹H-NMR(CDCl ₃)0.89(m，12H)5.11(s，2H)5.73(m，1H)

B) synthesize 3,3-two (N-CBZ-L-valyl oxygen ylmethyl) propionic acid

To refrigerative 4,4-two (N-CBZ-L-valyl oxygen ylmethyl)-but-1-ene (14.6 grams, 25 mmoles) and Tetrabutyl amonium bromide (1.3 the gram, 4 mmoles) add 100 ml waters in 120 milliliters of benzole solns. add potassium permanganate (15.8 grams under the vigorous stirring in batches, 100 mmoles), mixture stirred 2 hours between 15-20 ℃.Adding the acidic sulfurous acid salt brine solution in slurries fades until mixture. mixture 2N hcl acidifying, and with ethyl acetate extraction four times.Wash organic phase twice with water, the dry and vapourisation under reduced pressure of yellow soda ash.Product separates with silica gel column chromatography, output 7.5 grams,

¹H-NMR(CDCl ₃)0.89(m，12H)2.05(m，2H)2.46(m，2H)2.62(m，1H)4.20(m，6H)5.11(s，4H)5.30(m，2H)7.35(m，10H)

C) Synthetic 2 ', 3 '-two deoxidations-3 '-fluoro-5 '-O-[3,3-two (N-CBZ-L-valyl oxygen ylmethyl)-propionyl] guanosine

2 ', 3 '-two deoxidations-3 '-fluorine guanosine (1.35 grams, 5 mmoles), 3,3-two-(N-CBZ-L-valyl oxygen ylmethyl)-propionic acid (3.6 grams, 6 mmoles), DMAP (0.061 gram, 0.5 mmole) and solution and the DMF coevaporation secondary of HOBT (0.81 gram, 6 mmoles), reduce to about 120 milliliters.Add DCC (1.24 grams, 6 mmoles), mixture at room temperature stirs and spends the night.Filtering mixt, the vapourisation under reduced pressure solvent.Add ethyl acetate (200 milliliters), with twice of 5% acetate, 5% sodium bicarbonate and water washing organic phase.With dried over sodium sulfate organic phase and vapourisation under reduced pressure.Use the silica gel column chromatography separated product.Output 2.7 grams.

¹H-NMR(DMSO d-6)0.88(m，12H)2.00(m，2H)2.50-3.00(m，2H)3.90-4.43(m，10H)5.08(s，4H)5.32-5.59(m，1H)6.17(m，1H)6.50(s，2H)7.28(m，10H)7.72(m，2H)7.90(s，1H)

D) Synthetic 2 ', 3 '-two deoxidations-3 '-fluoro-5 '-O-[3,3-two (L-valyl oxygen ylmethyl)-propionic acid] guanosine

2 ', 3 '-two deoxidations-3 '-fluoro-5 '-O-[3,3-two (N-CBZ-L-valyl oxygen ylmethyl)-propionyl] solution of 80 milliliters of ethyl acetate, 20 ml methanol and 20 milliliters of acetate of guanosine (2.6 gram, 3.1 mmoles) is with palladium black (0.3 gram) hydrogenation two hours under normal pressure.Filter catalyzer, with ethyl acetate and methanol wash.Vapourisation under reduced pressure solution, with diacetin isolated in form product, output 1.2 restrains with silica gel column chromatography.

¹H-NMR(DMSO d-6)0.90(m，12H)1.78(m，2H)2.50-3.00(m，2H)3.09(m，2H)4.02-4.45(m，8H)5.34-5.59(m，1H)6.17(m，1H)6.62(s，2H)7.88(s，1H).

Embodiment 27

2' , 3' -two deoxidations-3' -fluoro-5' -O-[3-(L-valyl oxygen ylmethyl)-4-stearoyl-oxy-Ding Oxygen base acyl group] guanosine

A) Synthetic 2 ', 3 '-two deoxidations-3 '-fluoro-5 '-O-[3-(N-CBz-L-valyl oxygen ylmethyl)-4-stearoyl-oxy-butoxy carbonyl] guanosine

To 2 ', 3 '-two deoxidations-3 '-(269 milligrams of fluorine guanosines, 1.0 add (198 milligrams of pyridines in absolute DMF solution mmole), 2.5 mmole) and 3-(N-CBZ-L-valyl oxygen ylmethyl)-4-stearoyl-oxy-(750 milligrams of butoxy carbonyl muriates, 1.1 5 milliliters of dichloromethane solutions mmole). mixture at room temperature stirred three days, vapourisation under reduced pressure solution. use the silica gel column chromatography separated product, 120 milligrams of output

¹H-NMR(DMSO d-6)0.88(m，9H)1.24(m，28H)5.08(，2H)6.24(m，1H)8.00(s，1H).

B) Synthetic 2 ', 3 '-two deoxidations-3 '-fluoro-5 '-O-[3-(L-valyl oxygen ylmethyl)-4-stearoyl-oxy-butoxy carbonyl] guanosine

2 ', 3 '-two deoxidations-3 '-fluoro-5 '-O-[3-(N-CBz-L-valyl oxygen ylmethyl)-4-stearoyl-oxy-butoxy carbonyl] mixture of 15 milliliters of ethyl acetate, 2 ml methanol and 2 milliliters of acetate of guanosine is with palladium black (40 milligrams) hydrogenation two hours under normal pressure.Filter catalyzer, with ethyl acetate and methanol wash, vapourisation under reduced pressure solution, product separates with silica gel column chromatography with the acetate form, 78 milligrams of output,

¹H-NMR(DMSO d-6)0.87(m，9H)1.22(m，28H)1.48(m，2H)1.68(m，2H)2.12(m，1H)2.26(m，2H)2.50-3.00(m，2H)4.00-4.42(m，10H)5.34-5.58(m，1H)6.18(m，1H)6.52(s，2H)7.82(s，1H)。

Embodiment 28

2' , 3' -two deoxidations-3' -fluoro-5' -O-[2-(L-valyl oxygen base) stearyl] guanosine

A) Synthetic 2-oxystearic acid benzyl ester

To the DL-2-oxystearic acid that stirs (3.0 grams, 10 mmoles) add potassium tert.-butoxide (1.23 grams in 20 milliliters of anhydrous DMF solutions, 11 mmoles), mixture stirred one hour at 60 ℃, add bromotoluene (2.14 grams, 12.5 mmole), mixture stirred six hours at 80 ℃, and the vapourisation under reduced pressure mixture also adds 100 milliliters of ethyl acetate.The separation organic phase also washes with water four times, with dried over sodium sulfate organic phase and concentrated in a vacuum, and by the silica gel column chromatography separated product, output 3.3 grams,

¹H-NMR(CDCl ₃)0.88(m，3H)1.26(m，28H)1.62(m，2H)4.20(m，1H)5.20(s，2H)7.36(m，5H).

B) Synthetic 2-(N-FMOC-L-figured silk fabrics acyl aminooxy) stearic acid benzyl ester

To 2-hydroxystearic acid benzyl ester (3.2 grams, 8.2 N-FMOC-L-Xie Ansuan (3.4 grams mmole),, 10 mmoles) and DMAP (0.12 the gram, 1 mmole) adds DCC (2.5 grams in 80 milliliters of dichloromethane solutions, 12 mmoles) solution, mixture at room temperature stirs and spends the night, and mixture is cooled to 5 ℃, and filters urethane.Evaporated filtrate is used the silica gel column chromatography separated product, output 4.5 grams,

¹H-NMR(CDCl ₃)0.90(m，6H)1.26(m，6H)1.82(m，2H)2.16(m，1H)4.21(m，1H)4.36(m，2H)5.10(m，1H)5.18(s，2H)5.28(m，1H)7.20-7.80(m，13H).

C) Synthetic 2-(N-FMOC-L-figured silk fabrics acyl aminooxy) stearic acid

50 milliliters of ethyl acetate solutions of the stearic acid benzyl ester of 2-(N-FMOC-L-figured silk fabrics acyl aminooxy) (4.4 gram, 6.2 mmoles) are with the hydrogenation two hours under normal pressure of 10% palladium charcoal (0.5 restrains).Filter catalyzer, with ethyl acetate and 1, the washing of 4-diox. vapourisation under reduced pressure solution, product separates by silica gel column chromatography with the acetate form, output 3.4 grams,

¹H-NMR(CDCl ₃)0.88(m，6H)1.26(m，28H)1.82(m，2H)2.28(m，1H)4.20(m，1H)4.40(m，2H)5.00(m，1H)5.41(m，1H)7.26-7.82(m，8H)。

D) Synthetic 2 ', 3 '-two deoxidations-3 '-fluoro-5 '-O-[2-(N-FMOC-L-valyl oxygen base) stearyl] guanosine

2 ', 3 '-two deoxidations-3 '-(404 milligrams of fluorine guanosines, 1.5 2-(N-FMOC-L-valyl oxygen base)-stearic acid (1.24 grams mmole),, 2 mmoles), DMAP is (24 milligrams, 0.2 mmole) and (264 milligrams of HOBT, 1.95 mixture mmole) and DMF coevaporation secondary reduce to about 30 milliliters.Add DCC (372 milligrams, 1.8 mmoles), mixture at room temperature stirs and spends the night.Filtering mixt, vapourisation under reduced pressure solution.Add ethyl acetate (50 milliliters), with 5% acetate, 5% sodium bicarbonate and water washing organic phase twice, with dried over sodium sulfate organic phase and vapourisation under reduced pressure, product separates by silica gel column chromatography with the acetate form, output 1.2 grams,

¹H-NMR(DMSO d-6)0.80-0.90(m，9H)1.22(m，28H)2.12(m，1H)2.50-3.00(m，2H)3.98(m，1H)4.96(m，1H)6.17(m，1H)6.50(s，2H)7.32-7.95(m，10H)

E) Synthetic 2 ', 3 '-two deoxidations-3 '-fluoro-5 '-O-[2-(L-valyl oxygen base) stearyl] guanosine

To 2 ', 3 '-two deoxidations-3 '-fluoro-5 '-O-[2-(N-FMOC-L-valyl oxygen base) stearyl] add DBU (1.35 grams, 8.9 mmoles) in 15 milliliters of DMF solution of guanosine (800 milligrams, 0.89 mmole), mixture at room temperature stirred 5 minutes.Add acetate (2 milliliters), the mixture vapourisation under reduced pressure. add entry (20 milliliters), mixture dichloromethane extraction three times.With dried over sodium sulfate organic phase and vapourisation under reduced pressure, by the silica gel column chromatography separated product, 165 milligrams of output,

¹H-NMR(DMSO d-6)0.87(m，9H)1.22(m，28H)1.70(m，2H)1.88(m，1H)2.50-3.00(m，2H)3.20(m，1H)4.32(m，3H)4.94(m，1H)5.32-5.54(m，1H)6.14(m，1H)6.49(s，2H)7.89(s，1H)

Embodiment 29

2' , 3' -two deoxidations-3' -fluoro-5' -O-3-[1,3-two-(L-valyl oxygen base)-2-propoxycarbonyl Propionyl] guanosine

A) synthesizing succinic acid 1,3-benzyloxy-2-propyl group monoesters

Under 60 ℃, 1,3-benzyloxy propan-2-ol (6.8 grams, 25 mmoles) and Succinic anhydried (7.5 grams, 75 mmoles) and DMAP (12.2 grams, 100 mmoles) stirred one hour.The mixture vapourisation under reduced pressure is also used twice of ethyl acetate extraction with 2N HCl acidifying.Wash the organic phase three times of merging with water, with dried over sodium sulfate organic phase and vapourisation under reduced pressure, by the silica gel column chromatography separated product, output 7.8 grams,

B) Synthetic 2 ', 3 '-two deoxidations-3 '-fluoro-5 '-O-[3-(1,3-benzyloxy-2-propoxycarbonyl) propionyl] guanosine

2 ', 3 '-two deoxidations-3 '-fluorine guanosine (1.61 grams, 6 mmoles), HOBT (0.972 gram, 7.2 mmole), DMAP is (73.3 milligrams, 0.6 mmole) and Succinic Acid list 1, the mixture and the DMF coevaporation secondary of 3-benzyloxy-2-propyl ester (2.68 grams, 7.2 mmoles) reduce to about 150 milliliters.Add DCC (1.55 grams, 7.5 mmoles), mixture at room temperature stirred 72 hours.Filtering mixt, the vapourisation under reduced pressure solvent.Add ethyl acetate (200 milliliters), with 5% acetate, 5% sodium bicarbonate and water washing organic phase twice, dried over sodium sulfate organic phase and vapourisation under reduced pressure, by the silica gel column chromatography separated product, output 3.3 grams.

C) Synthetic 2 ', 3 '-two deoxidations-3 '-fluoro-5 '-O-[3-(1,3-dihydroxyl-2-propoxycarbonyl) propionyl] guanosine

2 '; 3 '-two deoxidations-3 '-fluoro-5 '-O-[3-(1; 3-benzyloxy-2-propoxycarbonyl) propionyl] 50 milliliters of ethyl acetate, 50 ml methanol and 10 milliliters of acetic acid solutions of guanosine (3.2 gram, 5.13 mmoles) spend the night with palladium black (0.6 restrains) hydrogenation under 40psi pressure.Filter catalyzer, use methanol wash. vapourisation under reduced pressure solution, use the silica gel column chromatography separated product, output 1.64 grams.

D) Synthetic 2 ', 3 '-two deoxidations-3 '-fluoro-5 '-O-{3-[1,3-two (N-CBZ-L-valyl oxygen base)-2-propoxycarbonyl] propionyl guanosine

2 '; 3 '-two deoxidations-3 '-fluoro-5 '-O-[3-(1; 3-dihydroxyl-2-propoxycarbonyl) propionyl] guanosine (1.93 grams; 2.93 N-CBZ-L-Xie Ansuan (1.76 grams mmole); 7 mmoles), HOBT (0.95 gram; 7 mmoles) and (85.5 milligrams of DMAP; 0.7 mixture mmole) and DMF coevaporation secondary; reduce to about 60 milliliters. add DCC (1.55 grams; 7.5 mmole), mixture at room temperature stirs and spends the night, and mixture was 60 ℃ of insulations four hours; be cooled to 10 ℃ then. filtering mixt, vapourisation under reduced pressure solvent.Add ethyl acetate (150 milliliters), with 5% acetate, 5% sodium bicarbonate and water washing organic phase twice, dried over sodium sulfate organic phase and vapourisation under reduced pressure, by the silica gel column chromatography separated product, output 1.6 grams.

E) Synthetic 2 ', 3 '-two deoxidations-3 '-fluoro-5 '-O-{3-[1,3-two (L-valyl oxygen base)-2-propoxycarbonyl] propionyl guanosine

2 '; 3 '-two deoxidations-3 '-fluoro-5 '-O-{3-[1; 3-two (N-CBZ-L-valyl oxygen base)-2-propoxycarbonyl] propionyl } 80 milliliters of ethyl acetate, 20 ml methanol of guanosine (1.6 gram, 1.75 mmoles) and 20 milliliters of acetic acid solutions be with palladium blacks (0.3 gram) hydrogenation two hours under room temperature and normal pressure.Filter catalyzer, use methanol wash.Vapourisation under reduced pressure solution, product separates with silica gel column chromatography with the diacetin form, output 1.02 grams,

¹H-NMR(DMSO d-6)0.84(m，12H)1.85(m，2H)2.58(m，4H)2.60-3.10(m，2H)3.11(m，2H)3.61-4.39(m，7H)5.19(m，1H)5.35-5.56(m，1H)6.16(m，1H)，6.62(s，2H)7.89(s，1H).

Embodiment 30

2' , 3' -two deoxidations-3' -fluoro-5' -O-{3-[1-(L-valyl oxygen base)-3-hydroxyl-2-propoxy-carbonyl Base] propionyl } guanosine

A) Synthetic 2 ', 3 '-two deoxidations-3 '-fluoro-5 '-O-{3-[1-(N-CBZ-L-valyl oxygen base)-3-hydroxyl-2-propoxycarbonyl] propionyl guanosine

2 '; 3 '-two deoxidations-3 '-fluoro-5 '-O-[3-(1; 3-hydroxyl-2-propoxycarbonyl) propionyl] guanosine (1.3 grams; 2.93 N-CBZ-L-Xie Ansuan (1.00 grams mmole); 4 mmoles), HOBT (0.54 gram; 4 mmoles) and mixture and the DMF coevaporation twice of DMAP (48.8 milligrams, 0.4 mmole), reduce to about 60 milliliters.Add DCC (0.91 gram, 4.4 mmoles), mixture at room temperature stirred 72 hours.Filtering mixt, vapourisation under reduced pressure solution. add ethyl acetate (150 milliliters), organic phase is with 5% acetate, 5% sodium bicarbonate and water washing twice, dried over sodium sulfate organic phase and vapourisation under reduced pressure.By the silica gel column chromatography separated product, output 0.99 gram.

B) Synthetic 2 ', 3 '-two deoxidations-3 '-fluoro-5 '-O-{3-[1-(L-valyl oxygen base)-3-hydroxyl-2-propoxycarbonyl] propionyl guanosine

2 '; 3 '-two deoxidations-3 '-fluoro-5 '-O-{3-[1-(N-CBZ-L-valyl oxygen base)-3-hydroxyl-2-propoxycarbonyl] propionyl } guanosine (0.82 gram; 1.21 30 milliliters of ethyl acetate mmole), 15 ml methanol and 15 milliliters of acetic acid solutions are with palladium black (0.15 gram) hydrogenation two hours under room temperature and normal pressure. filter catalyzer; use methanol wash. vapourisation under reduced pressure solution; product separates by silica gel column chromatography with the acetate form; output 0.5 gram

¹H-NMR(DMSO d-6)0.84(m，6H)1.86(m，1H)2.58(m，4H)2.63-3.02(m，2H)3.10-4.38(m，9H)5.34-5.55(m，1H)6.16(m，1H)6.56(s，2H)7.90(s，1H)。

Embodiment 31

5' -L-valyl-2' , 3' -two deoxidations-3' -fluorine guanosine

To 2 ', 3 '-two deoxidations-3 '-(810 milligrams of fluorine guanosines, 3 mmoles) and (73 milligrams of 4-dimethylaminopyridines, 0.6 N-CBz-L Xie Ansuan (1.5 grams mmole),, 6 mmoles) and (810 milligrams of I-hydroxybenzotriazoles, 6 mmoles) add DCC (1.36 grams, 6.6 mmoles) in DMF (20 milliliters) solution.After 72 hours, filter reaction mixture concentrates in a vacuum.With silica gel column chromatography separate 5 '-(N-CBz-L-valyl)-2 ', 3 '-two deoxidations-3 '-fluorine guanosine (1.15 gram).

This intermediate (503 milligrams, 1 mmole) is dissolved in the mixed solvent of ethyl acetate (10 milliliters), methyl alcohol (20 milliliters) and acetate (2 milliliters).Add palladium black (100 milligrams) in mixture, in hydrogen, the maintenance reaction mixture is 3 hours under the normal pressure.After filtering and concentrating, with silica gel column chromatography separate targets product (370 milligrams),

¹H-NMR(DMSO d-6)7.94(s，1H)，6.52(s，2H)，6.17(dd，1H)，5.47(dd，1H)，4.15(m，3H)，3.15(d，1H)3.01-2.62(m，2H)1.80(m，1H)0.82(dd，6H)。

Embodiment 32

2' , 3' -two deoxidations-3' -fluoro-5-O-[2-(L-valyl oxygen base) propionyl] guanosine

A) Synthetic 2-hydroxy-propionic acid 4-methoxy benzyl ester

To the DL-2-hydroxy-propionic acid that stirs (9.0 grams, 100 mmoles) add potassium tert.-butoxide (12.34 grams in 100 milliliters of anhydrous DMF solutions, 110 mmoles), under 60 ℃, stirred the mixture one hour. add 4-methoxy benzoyl chloride (18.8 grams, 120 mmoles), under 60 ℃, stirred the mixture 8 hours.The mixture vapourisation under reduced pressure adds 250 milliliters of ethyl acetate. and wash organic phase with water four times, dried over sodium sulfate also concentrates in a vacuum, output 16.8 grams,

¹H-NMR(CDCl ₃)1.40(m，3H)3.81(s，3H)4.26(m，1H)5.14(s，2H)6.90(d，2H)7.28(d，2H).

B) Synthetic 2-(N-CBZ-L valyl oxygen base) propionic acid 4-methoxy benzyl ester

To 2 hydroxy propanoic acid 4-methoxy benzyl ester (4.2 grams, 20 mmoles), N-CBZ-L Xie Ansuan (5.02 grams, 20 mmoles) and DMAP (0.24 the gram, 2 mmoles) add DCC (4.54 grams in 100 milliliters of dichloromethane solutions, 22 mmoles) solution, mixture at room temperature stirs and spends the night, and mixture is cooled to 5 ℃, filters urethane.Evaporated filtrate is also used the silica gel column chromatography separated product, output 7.9 grams,

¹H-NMR(CDCl ₃)0.88(m，6H)1.50(m，3H)2.26(m，1H)3.81(s，3H)4.34(m，1H)5.04-5.30(m，6H)6.88(d，2H)7.26(m，7H)。

C) Synthetic 2-(N-CBZ-L-valyl oxygen base)-propionic acid

Add trifluoroacetic acid (10 milliliters) in methylene dichloride (100 milliliters) solution of 2-(N-CBZ-L valyl oxygen base) propionic acid 4-methoxy benzyl ester (7.8 grams, 17.5 mmoles), at room temperature stirred solution is one hour.Vapourisation under reduced pressure solution is used the silica gel column chromatography separated product, output 5.0 grams,

¹H-NMR(CDCl ₃)0.94(m，6H)1.56(d，3H)2.30(m，1H)4.42(m，1H)5.12-5.30(m，4H)7.28(m，5H).

D) Synthetic 2 ', 3 '-two deoxidations-3 '-fluoro-5-O-[2-(N-CBZ-L-valyl oxygen base) propionyl] guanosine

2 ', 3 '-two deoxidations-3 '-(404 milligrams of fluorine guanosines, 1.5 2-(N-CBZ-L valyl oxygen base) propionic acid (0.582 gram mmole),, 1.8 mmole), DMAP is (22 milligrams, 0.18 mmole) and (243 milligrams of HOBT, 1.8 mixture mmole) and DMF coevaporation twice reduce to about 30 milliliters.Add DCC (412 milligrams, 2.0 mmoles), mixture at room temperature stirs and spends the night. filtering mixt, vapourisation under reduced pressure solution.Add 100 milliliters of ethyl acetate, organic phase is with 5% acetate, 5% sodium bicarbonate and water washing twice, dried over sodium sulfate organic phase and vapourisation under reduced pressure.By the silica gel column chromatography separated product, output 0.72 gram,

¹H-NMR(DMSO d-6)0.92(m，6H)1.40(d，3H)2.10(m，1H)2.50-3.06(m，2H)4.03(m，1H)4.20-4.44(m，3H)5.04(s，2H)5.12(m，1H)5.44-5.58(m，1H)6.18(t，1H)6.52(s，2H)7.36(m，5H)7.70(d，2H)7.92(s，1H)

E) Synthetic 2 ', 3 '-two deoxidations-3 '-fluoro-5-O-[2-(L-valyl oxygen base) propionyl] guanosine

2 '; 3 '-two deoxidations-3 '-fluoro-5-O-[2-(N-CBZ-L-valyl oxygen base) propionyl] 20 milliliters of ethyl acetate, 10 ml methanol of guanosine (0.6 gram, 1.04 mmoles) and 10 milliliters of acetic acid solutions be with palladium blacks (0.1 gram) hydrogenation two hours under room temperature and normal pressure.Filter catalyzer, use methanol wash, vapourisation under reduced pressure solution obtains the title compound of acetate form, output 0.5 gram,

¹H-NMR(DMSO d-6)0.88(m，6H)1.40(d，3H)1.92(m，4H)2.52-3.04(m，2H)3.18(m，1H)4.18-4.42(m，3H)5.06(m，1H)5.32-5.58(m，2H)6.18(m，1H)6.52(s，2H)7.90(s，1H)。

Embodiment 33

2' , 3' -two deoxidations-3' -fluoro-5' -O-3-[2,3-two-(L-valyl oxygen base)-1-propoxycarbonyl] The propionyl guanosine

A) synthesizing succinic acid 4-methoxy-benzyl monoesters

To 1 of Succinic anhydried (75 grams, 750 mmoles) and 4-methoxyl group benzylalcohol (69.1 grams, 500 mmoles), add pyridine (79.1 grams, 1000 mmoles) in 4-diox (300 milliliters) mixture, mixture stirred 5 hours at 80 ℃.The vapourisation under reduced pressure mixture adds 600 milliliters of ethyl acetate and 60 milliliters of acetate. wash organic phase with water three times, dried over sodium sulfate and vapourisation under reduced pressure. and product carries out recrystallization with toluene, output 104 grams,

¹H-NMR(DMSO d-6)2.48(m，4H)3.72(s，3H)5.00(s，2H)6.90(d，2H)7.28(d，2H)。

B) synthesizing succinic acid 2,3-dihydroxyl-propyl ester, 4-methoxy benzyl ester

To glycerine (23.0 grams, 250 mmoles), Succinic Acid 4-methoxy-benzyl monoesters (5.96 grams, 25 mmoles) and DMAP (0.36 the gram, 3 mmoles) add DCC (6.2 grams in DMF (200 milliliters) solution, 30 mmoles), mixture at room temperature stirs and spends the night, and the vapourisation under reduced pressure mixture adds 150 milliliters of methylene dichloride.Filtering mixt, the solution with water washed twice.Water dichloromethane extraction twice, the organic phase dried over sodium sulfate of merging.The solution vapourisation under reduced pressure is used the silica gel column chromatography separated product, output 3.0 grams,

¹H-NMR(CDCl ₃)2.65(m，4H)3.61(m，2H)3.80(s，3H)3.90(m，1H)4.18(m，2H)5.05(s，2H)6.89(d，2H)7.26(d，2H)。

C) synthesizing succinic acid 2,3-two-(N-CBZ-L-valyl oxygen base)-propyl ester, 4-methoxy benzyl ester

To the Succinic Acid 2 that stirs, 3-dihydroxyl-propyl ester, 4-methoxy benzyl ester (2.9 grams, 9.28 mmoles), N-CBZ-L-Xie Ansuan (5.03 grams, 20 mmoles) and DMAP (0.244 grams, 2 mmoles) add DCC (4.5 gram, 22 mmoles) in methylene dichloride (60 milliliters) solution, mixture at room temperature stirs and spends the night, filtering mixt, and the solution vapourisation under reduced pressure use the silica gel column chromatography separated product, and output 2.5 restrains,

¹H-NMR(CDCl ₃)0.90(m，12H)2.16(m，2H)2.62(m，4H)3.80(s，3H)4.32(m，4H)5.05-5.52(m，9H)6.89(d，2H)7.30(m，12H)。

D) synthesizing succinic acid 2,3-two-(N-CBZ-L-valyl oxygen base)-propyl ester

Add trifluoroacetic acid (2.5 milliliters) in methylene dichloride (25 milliliters) solution of above-mentioned intermediate (2.3 grams, 2.95 mmoles), solution at room temperature stirred two hours.Vapourisation under reduced pressure solution is used the silica gel column chromatography separated product, output 1.8 grams,

¹H-NMR(CDCl ₃)0.92(m，12H)2.12(m，2H)2.64(m，4H)4.32(m，4H)5.10(s，4H)5.22-5.50(m，3H)7.34(m，10H).

E) Synthetic 2 ', 3 '-two deoxidations-3 '-fluoro-5 '-O-{3-[2,3-two-(N-CBZ-L-valyl oxygen base)-1-propoxycarbonyl] propionyl guanosine

2 ', 3 '-two deoxidations-3 '-fluorine guanosine (0.538 gram, 2 mmoles), HOBT (0.327 gram, 2.42 mmole), DMAP is (29.3 milligrams, 0.24 mmole) and Succinic Acid 2, mixture and the DMF coevaporation twice of 3-two-(N-CBZ-L-valyl oxygen base)-1-propyl ester (1.6 grams, 2.42 mmoles) reduce to about 50 milliliters.Add DCC (0.536 gram, 2.6 mmoles), mixture at room temperature stirred 72 hours.Filtering mixt, vapourisation under reduced pressure solution. add 100 milliliters of ethyl acetate, organic phase is with 5% acetate, 5% sodium bicarbonate and water washing twice, dried over sodium sulfate organic phase and vapourisation under reduced pressure. and by the silica gel column chromatography separated product, output 0.65 restrains,

¹H-NMR(DMSO d-6)0.88(m，12H)2.08(m，2H)2.58-3.04(m，6H)3.92(m，2H)4.10-4.46(m，7H)5.00(s，4H)5.22(m，1H)5.32-5.56(m，1H)6.17(m，1H)6.50(s，2H)7.32(m，10H)7.70(d，2H)7.92(s，1H)。

F) Synthetic 2 ', 3 '-two deoxidations-3 '-fluoro-5 '-O-{3-[2,3-two-(L-valyl oxygen base)-1-propoxycarbonyl] propionyl guanosine

20 milliliters of ethyl acetate of above-mentioned intermediate (0.57 gram, 0.626 mmole), 10 ml methanol and 10 milliliters of acetic acid solutions are with palladium blacks (0.1 gram) hydrogenation two hours under room temperature and normal pressure.Filter catalyzer, use methanol wash.Vapourisation under reduced pressure solution is used the silica gel column chromatography separated product, and product is dissolved in the methylene dichloride, and the diethyl ether solution (1.1 milliliters) of adding 1M hydrochloric acid. the mixture vapourisation under reduced pressure, the dry in a vacuum title compound that obtains the dihydrochloride form, output 0.37 gram

¹H-NMR(DMSO d-6)0.92(m，12H)2.12(m，2H)2.58-3.04(m，6H)3.75(m，2H)4.16-4.50(m，7H)5.19-5.60(m，2H)6.18(m，1H)6.76(s，2H)7.92(s，1H)。

Embodiment 34

2' , 3' -two deoxidations-3' -fluoro-5' -O-3-[1,3-two-(L-valyl oxygen base)-2-propoxycarbonyl] Propionyl guanosine dihydrochloride

A) synthesizing succinic acid 1,3-two bromo-2-propyl ester, 4-methoxy benzyl ester

At about 10 ℃, to 1,3-dibromo propan-2-ol (21.8 grams, 100 mmoles), Succinic Acid 4-methoxy benzyl ester (28.6 grams, 120 mmoles) and in methylene dichloride (400 milliliters) solution of DMAP (1.22 grams, 10 mmoles) add DCC (24.8 restrain 120 mmoles) in batches.Mixture at room temperature stirs and spends the night, and is cooled to about 5 ℃.Filtering mixt, the solution vapourisation under reduced pressure.Add 600 milliliters of ethyl acetate, organic phase is with 5% acetate, 5% sodium bicarbonate and water washing twice, dried over sodium sulfate solution, and vapourisation under reduced pressure.By the silica gel column chromatography separated product, output 34.8 grams,

¹H-NMR(CDCl ₃)2.69(m，4H)3.57(m，4H)3.81(s，3H)5.07(s，2H)5.14(m，1H)6.88(d，2H)7.26(d，2H)。

B) synthesizing succinic acid 1,3-two-(N-CBZ-L-valyl oxygen base)-2-propyl ester, 4-methoxy benzyl ester

Add potassium tert.-butoxide (24.68 grams, 220 mmoles) in dry DMF (300 milliliters) solution of N-CBZ-L-Xie Ansuan (58.5 grams, 232.8 mmoles), mixture at room temperature stirred one hour.Add Succinic Acid 1,3-two bromo-2-propyl ester, dry DMF (50 milliliters) solution of 4-methoxy benzyl ester (34 grams, 77.6 mmoles), mixture stirred 18 hours at 60 ℃.Filter Potassium Bromide, the solution vapourisation under reduced pressure.Add 600 milliliters of ethyl acetate, organic phase is with 5% sodium bicarbonate and water washing twice, dried over sodium sulfate organic phase and vapourisation under reduced pressure.By the silica gel column chromatography separated product, output 45 grams,

¹H-NMR(CDCl ₃)0.90(m，12H)2.16(m，2H)2.61(m，4H)3.80(s，3H)4.12-4.42(m，6H)5.02(s，2H)5.10(s，4H)5.43(m，3H)6.88(d，2H)7.32(m，12H)。

C) synthesizing succinic acid 1,3-two-(N-CBZ-L-valyl oxygen base)-2-propyl ester

At 5-10 ℃, in the solution of the methylene dichloride (500 milliliters) of above-mentioned refrigerative intermediate (44.5 gram, 57.1 mmoles), add trifluoroacetic acid (50 milliliters), this solution stirred two hours at 10 ℃.Twice of vapourisation under reduced pressure solution and toluene coevaporation.Add 400 milliliters of ethanol, mixture stirred 30 minutes at 40 ℃. and cooling mixture filters by product.The solution vapourisation under reduced pressure is used the silica gel column chromatography separated product, output 33 grams,

¹H-NMR(DMSO d-6)0.88(m，12H)2.04(m，2H)2.46(m，4H)，3.94-4.40(m，6H)5.02(s，4H)5.18(m，1H)7.32(m，10H)7.74(d，2H)。

D) Synthetic 2 ', 3 '-two deoxidations-3 '-fluoro-5 '-O-{3-[1,3-two-(N-CBZ-L-valyl oxygen base)-2-propoxycarbonyl] propionyl guanosine

2 ', 3 '-two deoxidations-3 '-fluorine guanosine (17.8 grams, 66 mmoles), HOBT (10.64 grams, 78.8 mmole), Succinic Acid 1,3-two-(N-CBZ-L-valyl oxygen base)-2-propyl ester (52 grams, 78.8 mmole) and mixture and the DMF coevaporation twice of DMAP (0.96 gram, 7.88 mmoles), reduce to about 500 milliliters.Add DCC (17.3 grams, 84 mmoles), mixture at room temperature stirs and spends the night.Mixture is cooled to about 10 ℃ then 60 ℃ of insulations 6 hours.Filtering mixt, vapourisation under reduced pressure solution.Add 1200 milliliters of ethyl acetate, organic phase is with 5% acetate, 5% sodium bicarbonate and water washing twice, dried over sodium sulfate organic phase and vapourisation under reduced pressure.By the silica gel column chromatography separated product, output 42 grams,

¹H-NMR(DMSO d-6)0.90(m，12H)2.02(m，2H)2.5-3.02(m，6H)3.94(m，2H)4.22(m，7H)5.02(s，4H)5.18(m，1H)5.22-5.50(m，1H)6.16(m，1H)6.50(s，2H)7.32(m，10H)7.72(d，2H)7.92(s，1H)。

E) Synthetic 2 ', 3 '-two deoxidations-3 '-fluoro-5 '-O-{3-[1,3-two-(L-valyl oxygen base)-2-propoxycarbonyl] propionyl guanosine dihydrochloride

2 '; 3 '-two deoxidations-3 '-fluoro-5 '-O-{3-[1; 3-two-(N-CBZ-L-valyl oxygen base)-2-propoxycarbonyl] propionyl } 75 milliliters of ethyl acetate of guanosine (5.0 gram, 5.9 mmoles) and 75 ml methanol solution are with being loaded in the hydrogenation one hour under room temperature and normal pressure of 10% palladium (1 gram) on the activated carbon.Filter catalyzer, use methanol wash.Vapourisation under reduced pressure solution, product is dissolved in the methylene dichloride, and adds the diethyl ether solution (6 milliliters) of 1M hydrochloric acid under cooling. the mixture vapourisation under reduced pressure, and output 3.5 grams,

¹H-NMR(DMSO d-6)0.94(m，12H)2.18(m，2H)2.5-3.04(m，6H)4.20-4.54(m，7H)5.24(m，1H)5.34-5.64(m，1H)6.22(m，1H)6.92(s，2H)8.30(s，1H)8.62(s，6H)。

Embodiment 35

Synthetic 2' , 3' -two deoxidations-3' -fluoro-5' -O-3-[1,3-two-(L-valyl oxygen base)-2-propoxy- Carbonyl] the propionyl guanosine

A) synthesizing succinic acid 1,3-two bromo-2-propyl ester, 1,1-dimethyl ethyl ester

At about 10 ℃, to 1,3-dibromo propan-2-ol (10.9 grams, 50 mmoles), Succinic Acid 1, add DCC (12.4 grams in methylene dichloride (180 milliliters) solution of 1-dimethyl ethyl ester (J.Org.Chem 59 (1994) 4864) (10.45 grams, 60 mmoles) and DMAP (0.61 gram, 5 mmoles) in batches, 60 mmoles). mixture at room temperature stirs and spends the night, and is cooled to about 5 ℃.Filtering mixt, the solution vapourisation under reduced pressure.Add 250 milliliters of ethyl acetate, organic phase is with twice of 5% citric acid, 5% sodium bicarbonate and water washing.Use dried over sodium sulfate solution, and vapourisation under reduced pressure.Product of distillation (boiling point 0.5135-140 ℃) in a vacuum, output 16.8 grams,

¹H-NMR(CDCl ₃)1.45(s，9H)2.58(m，4H)3.61(m，4H)5.12(m，1H)。

B) synthesizing succinic acid 1,3-two-(N-CBZ-L-valyl oxygen base)-2-propyl ester, 1,1-dimethyl ethyl ester

Add potassium tert.-butoxide (7.85 grams, 70 mmoles) in dry DMF (100 milliliters) solution of N-CBZ-L-Xie Ansuan (18.85 grams, 75 mmoles), mixture at room temperature stirred one hour.Add Succinic Acid 1,3-two bromo-2-propyl ester, 1, dry DMF (20 milliliters) solution of 1-dimethyl ethyl ester (9.35 grams, 25 mmoles), mixture stirred 18 hours at 60 ℃.Filter Potassium Bromide, the solution vapourisation under reduced pressure.Add 300 milliliters of ethyl acetate, organic phase is with twice of 5% sodium bicarbonate and water washing.Use the dried over sodium sulfate organic phase, and vapourisation under reduced pressure. use the silica gel column chromatography separated product, output 14 grams.

¹H-NMR(CDCl ₃)0.90(m，12H)1.42(s，9H)2.14(m，2H)2.52(m，4H)4.32(m，6H)5.10(s，4H)5.32(m，3H)7.26(m，10H)

C) synthesizing succinic acid 1,3-two-(N-CBZ-L-valyl oxygen base)-2-propyl group monoesters

To above-mentioned refrigerative Succinic Acid 1,3-two-(N-CBZ-L-valyl oxygen base)-2-propyl ester, 1, add trifluoroacetic acid (20 milliliters) in methylene dichloride (100 milliliters) solution of 1-dimethyl ethyl ester (13 grams, 18.18 mmoles), solution at room temperature stirred six hours.Vapourisation under reduced pressure solution adds 200 milliliters of ethyl acetate, and organic phase is with 5% sodium bicarbonate and water washing, the solution vapourisation under reduced pressure, and output 11.7 grams,

D) Synthetic 2 ', 3 '-two deoxidations-3 '-fluoro-5 '-O-3-[1,3-two-(L-valyl oxygen base)-2-propoxycarbonyl] the propionyl guanosine

Method shown in embodiment 34 step b) to FLG, and with technology commonly used, as embodiment 35 step e) or embodiment 29 step e), is removed the N protecting group on the valyl part with the intermediate esterification of step c).

Biology embodiment

Pharmacokinetics

Can confirm that in mouse models the oral prodrug of the present invention discharges FLG in vivo, this model is considered to be used to estimate the useful model of the pharmacokinetic parameters of nucleoside medicine.Oral compositions can the pharmaceutical excipient administration, and vehicle comprises propylene glycol, or for more diffluent compound, as embodiment 26 or embodiment 34 described compounds, the water administration is with the dosage antagonism food animal repeated experiments of 0.1 mmole/kilogram.In order to compare, one group of mouse intravenous injection 0.01 mmole/kilogram metabolite 2 ', 3 '-two deoxidations-3 ' fluorine guanosine.After administration 0.5-12 hour (is 5 minutes-6 hours for FLG), by the concentration of the sero monitoring blood serum metabolic thing constantly collected in each animal body.

By being similar to Stahle etc. 1995, J Pharm, Biomed.Anal, 13, the method of 369-376, analyze metabolite with the HPLC that detects with 254 nanometer UV, the HPLC system is the 0.05M primary ammonium phosphate buffered soln that contains 1.2%2-propyl alcohol solvent of pH4.5 based on buffer value, or is the 30mM sodium dihydrogen phosphate buffer that contains 2% acetonitrile solvent of pH7.0 based on buffer value.Pillar is with 7 100 * 2.1 millimeters BAS C18 5 micron grain sizes of the anti-guard post of micron C18 or 150 * 4.6 millimeters Zorbax SB-CN C18,5 microns posts to be arranged.The albumen linkage force of The compounds of this invention can be ignored, and the linkage force of same metabolite also can be left in the basket, and the Ultrafiltration of Amicon or Microcon 30 strainers is useful for serum sample.Advantageously main peak can carry out column chromatography again, to be more conducive to improve the resolving power of FLG to the lower molecular weight serum component.Iv is on duty with 10, reaching the AUC value that can compare with oral value.Absolute oral bioavailability with ^{0 → ∞}AUC _IvWith ^{0 → ∞}AUC _OralBetween ratio measure.

Table 1

	Absolute bioavailability % after 6 hours	Absolute bioavailability % after 12 hours
	Absolute bioavailability % after 6 hours	Absolute bioavailability % after 12 hours	FLG embodiment 22 embodiment 13 embodiment 12 embodiment 25 embodiment 28 embodiment 24 embodiment 26 embodiment 29	39％37％29％81.5％47.5％60.5％51％	9％ ^*>80％ ^67.5％

* measured value * * literature value

Therefore, with respect to metabolite 2 ' 3 '-two deoxidations-3 '-the fluorine guanosine, compound of the present invention provides obvious improved oral bioavailability rate. and particularly, compound discharges in the mode that continues relatively in blood, rather than in the mode of a peak (immediate peak).This means that the significant quantity of active metabolite in blood can continue a lot of hours, thereby help dosage once a day.The acute toxicity problem that has produced when in addition, the compound snap-out release has been avoided in lasting release.

Although rat can be thought a kind of animal model that well is used to predict the bioavailability of nucleosides in the human body, but the determining of the bioavailability separately of The compounds of this invention (embodiment 34) undertaken by 11.5 kilograms of male and female police dogs of ≈, and be oral or with the intravenous injection of 0.005 mmole/kilogram (1.35 mg/kg) metabolite aqua with 0.05 mmole/kilogram (38 mg/kg) compound aqua.The Collection and analysis of blood plasma as mentioned above.

Male dog is absolute bioavailability 51% after 12 hours

Female dog is absolute bioavailability 74% after 12 hours

Biological Examples 2

Antiviral activity-retrovirus

By biological Examples 1 described method prove compound of the present invention in vivo discharged metabolite 2 ' 3 '-two deoxidations-3 '-the fluorine guanosine. therefore, this metabolite will reflect the substantial activity of The compounds of this invention at the antiviral activity of external test.

Koshide etc. have utilized the XYY dyestuff intake analysis of MT4 cell in the XTT dyestuff intake analysis described in Antimicrob Agents Chemother 33 778-780 (1989),, the metabolite that above-mentioned biological Examples 1 is measured has shown and time has been listed in external antiretroviral activity.

Table 2

HIV or reverse transcription disease toxic bacterial strain	IC ₅₀*
HIV or reverse transcription disease toxic bacterial strain	IC ₅₀*	HIV-1 _IIIBHIV-1 ²⁴⁴²AZT ^rHIV-1 _IIIBTIBO ^rHIV-I ^29/9HIV-2 _SBL6669SIV _SM	1 mcg/ml, 1 mcg/ml, 1 mcg/ml, 0.7 mcg/ml, 2 mcg/ml, 1 mcg/ml

* cause that 50% suppresses the metabolite concentration of virus replication.

Therefore clearly, take in compound of the present invention to antiretroviral HIV-1, HIV-2 and SIV have produced powerful antiviral activity.Simultaneously according to HIV-1 ²⁴⁴¹AZT ^rAnd HIV-1 _IIIBTIBO ^rThe result, the antiviral activity that it should be noted that The compounds of this invention does not show the intersectional friction of anti-HIV bacterial strain, and these bacterial strains are drug-fast to other HIV agent such as ucleosides AZT or non-nucleoside reverse transcriptase inhibitor TIBO.

Biological Examples 3

Antiviral activity-HBV

Antiviral activity for the hepatitis B virus (DHBV) of duck in the duck body is a kind of animal model of generally acknowledging of verifying hepatitis B virus activity in the human body.The activity of the in vivo metabolite of measuring in the above-mentioned biological Examples 2 according to Sherker etc. at (1986) Gastroenterology 91, the described DHBV model of 818-824 page or leaf is measured.The result is shown in attached Fig. 1 and 2, and the duck of 4 contrasts is handled with phosphate buffered saline (PBS), and 4 ducks are taken in active metabolite with the amount of 5 mg/kg/day in addition, and after planting DHBV, duck can live two days, and the duck that obtains medical treatment can live 18 days.Every day twice in ten days, early 8 and afternoon 4 peritoneal injection metabolites and PBS (contrast). treatment continues 33 days, and animal still lived for 5 weeks after the treatment end.

Use radioactive probe, the Dot blot hybridization by DHBV DNA is carried out curative effect and is followed the tracks of, and with the amount of the radioactivity hybridization the measured amount as DHBV.Accompanying drawing 1 has been drawn before the treatment, during and the amount of DHBV DNA in the different time points serum afterwards.

As shown in Figure 1, the amount of DHBV does not reduce during handling with PBS (contrast, solid line).The animal that gives in the biological Examples 2 metabolite (dotted line) measured has shown that in preceding ten days of treatment, the DHBV amount sharply reduces in the serum, after this, in the remaining time of treatment, is lower than detectability with the concentration of the DHBV of 5 mg/kg/day administrations.With 30 and 3 mg/kg/day dosage repeated experiments, (not shown) has also obtained same result in the duck of congenital infection, and promptly DHBV DNA sharply reduces to below the detectability in the serum.Although with the low dosage of 3 mg/kg/day, metabolite also can produce sizable DHBV restraining effect in vivo.After treatment finished, virus occurred in serum once more, as shown in Figure 1, observed very early in the human and animal of chronic HBV infection with behind the antiviral agent short commonly used, and HBV reappears.

As shown in Figure 2, weight of duck and control group (treating with PBS) animal increases equally.During treating, observe weight and increase to about 800 grams from about 270 grams, its weightening finish is big, the people is thought, if there are toxic words, its growth velocity has conspicuous variation. and the duck for the more high dosage of accepting 30 mg/kg/day also can be observed identical growth curve.Therefore this metabolite clearly is nontoxic.Because compound of the present invention hydrolysis in vivo generates this metabolite, as described in above-mentioned embodiment 2, and identical with character, be easy to metabolic lipid acid, can infer that the administration The compounds of this invention can not cause secular toxicity problem.

Mouthful administration compound of the present invention and do not cause that acute (short-term) toxicity is confirmed in above-mentioned biological Examples 2.

Example of formulations 1

Tablet formulation

With 0.15 millimeter sieve following component is sieved, and dry mixed

10 grams 2 ' 3 '-two deoxidations-3 '-fluoro-5 '-O-3-[1,3-two-(L-valyl oxygen base)-2 propoxycarbonyl propionyls] guanosine

40 gram lactose

49 gram crystalline celluloses

1 gram Magnesium Stearate

Mixture is pressed into the tablet that contains 250 milligrams of active ingredients with the compressing tablet instrument.

Example of formulations 2

Enteric coated tablet

Usefulness contains the tablet spraying dressing of the solution of following component with example of formulations 1 in the tablet coating device:

120 gram ethyl cellulose

30 gram propylene glycol

10 gram dehydrations are by pears alcohol monooleate

Add 1000 ml distilled waters

Example of formulations 3

Controlled release preparation

50 grams 2 ' 3 '-two deoxidations-3 '-fluoro-5 '-O-[5-(L-valyl oxygen ylmethyl)-6 stearoyl-oxy caproyls] guanosine

12 gram Vltra tearss (Methocell K15)

4.5 gram lactose

Dry mixed, and stick with paste granulating with the water of polyvidone.Add Magnesium Stearate (0.5 gram), mixture is made the tablet of 13 mm dias that contain 500 milligrams of promoting agents in the compressing tablet instrument.

Example of formulations 4

Soft capsule

100 gram Yelkin TTS

100 gram peanut oil

The compounds of this invention is dispersed in Yelkin TTS and the peanut oil, and in the capsule of the soft gel of packing into.

Claims

1. 5 '-L-valyl-2 ', 3 '-two deoxidations-3 '-compound of fluorine guanosine indication.

2. 5 '-L-valyl-2 ', 3 '-two deoxidations-3 '-compound of fluorine guanosine indication is used for the treatment of or prevents purposes in the medicine that HBV or retrovirus infect in preparation.