WO2001016118A1 - Processes for the preparation of optically active oxazolidinone compounds - Google Patents
Processes for the preparation of optically active oxazolidinone compounds Download PDFInfo
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- WO2001016118A1 WO2001016118A1 PCT/JP2000/005829 JP0005829W WO0116118A1 WO 2001016118 A1 WO2001016118 A1 WO 2001016118A1 JP 0005829 W JP0005829 W JP 0005829W WO 0116118 A1 WO0116118 A1 WO 0116118A1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D263/00—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings
- C07D263/02—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings
- C07D263/08—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
- C07D263/16—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D263/18—Oxygen atoms
- C07D263/20—Oxygen atoms attached in position 2
Definitions
- the present invention provides an optically active oxazolidinone compound, which is useful as an intermediate for the production of / 9-blockers, oxazolidinone antibacterial agents, etc., from an optically active tris- (2,3-epoxyalkyl) -isocyanurate compound. How to do it. Background art
- Tetrahedron, vol. 43, No. 11, page 2505 (1989) describes a method for synthesizing optically active oxazolidinone compounds, but the process is long and not necessarily effective. It cannot be said that it is a simple manufacturing method.
- Tetrahedron, Vol. 54, No. 14, pp. 3465 states that N- (2,3-epoxypropyl) carbamate and racemic oxazolidino from amines.
- the method for producing styrene is described in Tetrahedron Letters, No. 12, p. 809 (1971), as a racemic material from phenyldaricidyl ether and isocyanate.
- a method for producing oxazolidinone is described, but no description is given for an optically active substance.
- US Pat. No. 3,446,814 discloses a racemic trisux (2,3- A method for producing oxazolidinone from monoisocyanurate and phenols has been described. So far, optically active oxazolidinone has been produced from optically active tris- (2,3-epoxypropyl) isocyanurate. There is no known method.
- An object of the present invention is to provide a method for easily producing an optically active oxazolidinone compound, which is useful as an intermediate for producing an i-blocker or an oxazolidinone antibacterial agent.
- the oxazolidinone compound of the present invention can be easily converted to the above-mentioned production intermediate aminopropanol derivative by hydrolysis.
- -Broc is a wide-ranging therapeutic drug from the treatment of angina and arrhythmias, to hypertension, thyroid dysfunction, pheochromocytoma, cardiovascular disease, neuropsychiatry and anesthesia. Has been used as In addition, the oxazolidinone antibacterial agent Linez 0
- 11d (trade name: Zyvox) is known to have high efficacy against microbial infections caused by noncomycin-resistant staphylococci, streptococci, anaerobic bacteria and tuberculosis bacteria.
- the present inventors have conducted various studies to solve the above problems, and as a result, have found that an optically active tris (2,3-epoxyalkyl) monoisocyanurate compound and phenols, thiophenols, and anilines can be used in the presence of a base.
- the present inventors have found that an optically active oxazolidinone compound useful as an intermediate for the production of ⁇ -blocker and oxazolidinone-based antibacterial agents and the like can be easily produced by reacting the compound with the compound (1), thereby completing the present invention.
- Tris- (2,3-epoxyalkyl) monoisocyanurate used as a raw material in the present invention has a relatively small number of asymmetric centers, three in a molecule, and has relatively high purity due to good crystallinity. It is easy to react with phenols, thiophenols, and anilines, and has a mild and mild optically available characteristic. High purity oxazolidinone compound can be obtained under the conditions, disclosure of the invention
- Equation (1) which is obtained by reacting an optically active tris- (2,3-epoxyalkyl) -isocyanurate represented by the formula (2) with a compound represented by the formula (2) R′XH,
- * represents an asymmetric carbon
- X represents 0, NR 3 , PR 3 , and S
- R ′ represents at least one atom selected from the group consisting of 0, S, N, and F.
- R ', R 2 and R 3 may be the same or different, respectively, to obtain a tris- (2,3-epoxyalkyl) -isocyanurate adduct represented by the formula: Process, and
- the method for producing an optically active oxazolidinone compound according to the second aspect wherein a Lewis acid, an inorganic salt, an inorganic oxide, or an ionic salt is added as a catalyst to the step (A),
- any one of the first to fifth aspects in which X is an oxygen atom is an oxygen atom
- X is a first aspect to optically active Okisazorijinon compound of placing serial to any one of the fifth aspect is NR 3,
- the optics according to any one of the first to fifth aspects wherein X is 0 and R 1 is an optionally substituted aromatic ring or an optionally substituted heterocyclic ring.
- the optics according to any one of the first to fifth aspects, wherein X is NH and R 1 is an optionally substituted aromatic ring or an optionally substituted heterocyclic ring.
- a method for producing an optically active oxazolidinone compound according to any one of the first to fifth aspects wherein R 2 is hydrogen and X is an oxygen atom.
- R 1 represents an organic group having 1 to 36 carbon atoms which may contain one or more atoms selected from the group consisting of 0, S, N and P.
- Force 5 is not particularly restricted but includes organic group, preferably an alkyl group, an aliphatic hydrocarbon group, cycloalkyl group, optionally substituted aromatic hydrocarbon group, heterocyclic, alkoxycarbonylalkyl And the like.
- R ′ is an organic group having 1 to 36 carbon atoms, including the atomic groups exemplified above, and is preferably an organic group having 1 to 18 carbon atoms.
- R 2 and R 3 represent H or an organic group having 1 to 36 carbon atoms which may contain one or more atoms selected from the group consisting of 0, S, N and P.
- the organic group is not particularly limited, but is preferably an aliphatic hydrocarbon group such as an alkyl group or a cycloalkyl group, an aromatic hydrocarbon group, a heterocyclic ring, an alkoxycarbonylalkyl group, or the like. It is. It is an organic group having 1 to 36 carbon atoms comprising the atomic groups exemplified above, and preferably an organic group having 1 to 18 carbon atoms.
- the alkyl group includes a methyl group, an ethyl group, a propyl group and the like
- the cycloalkyl group includes a cyclopropyl group, a cyclopentyl group and a cyclohexyl group.
- aromatic hydrocarbon group examples include fuunyl and naphthyl.
- Heterocycles include indole, benzothiophene, 1,2,5-thiadiazol, pyridine and the like.
- alkoxycarbonylalkyl group examples include a methoxycarbonylmethyl group and an ethoxycarbonylethyl group.
- the above-mentioned organic group includes a halogen, an alkyl group, a cycloalkyl group, an alkylamino group, an alkoxy group, an alkylthio group, a cyano group, a nitro group, an alkoxyl group, a hydroxyl group, and an amino group. And may have one or more substituents selected from the group consisting of the same or different substituents.
- the preferred method for producing the optically active oxazolidinone compound represented by the formula (3) according to the present invention comprises, as the step (A), an optically active tris- (epoxyalkylene) -iso-isocyanurate represented by the formula (1):
- the phenols and anilines represented by (2) are reacted to obtain an optically active tris (epoxyalkyl) -isocyanurate adduct represented by the formula (4).
- the optically active tris- (2,3-epoxyalkyl) isocyanurate used as a raw material in the present invention easily reacts with the compound represented by the formula (2) R'XH, and has a high purity optical property under mild conditions.
- Formula (1) which is a starting material of the present method, represents a compound of (2R, 2R,, 2R ") or (2S, 2S ', 2S").
- 2R, 2R, 2R represents a compound of (2R, 2R,, 2R ") or (2S, 2S ', 2S").
- optically active tris (2,3_epoxypropyl)
- the isocyanurate is reacted with optically active epichlorohydrin on cyanolic acid, followed by the dropwise addition of an aqueous solution of NaOH while dehydrating and refluxing, whereby a dehydrochlorination reaction takes place, and the desired optically active tris (2) , 3-epoxypropyl)
- One isocyanurate can be obtained.
- optically active tris (2,3-epoxyalkyl) isocyanurate used as a raw material in the present invention include a hydrogen atom for R 2 and a lower alkyl group such as a methyl group or an ethyl group.
- (2,3-epoxypropyl) monoisocyanurate and tris (2,3-epoxypropyl-12-methyl) isocyanurate can be exemplified.
- R 2 is a hydrogen atom during the production process of the present application, that is, when tris- (2,3-epoxypropyl) -isocyanurate is used, the compound easily reacts with the compound represented by the formula (2) and is mild. It is most preferable because a high purity optically active oxazolidinone compound can be obtained under the conditions.
- the optically active tris- (2,3-epoxyalkyl) monoisocyanurate used in the present invention is preferably of high purity due to the nature of its use.
- the purity is preferably 0% or more, and more preferably 95% or more.
- the optical purity of the raw material is important because it affects the optical purity of the target substance, and is preferably S0% e.e. or more, more preferably 90% e.e. or more.
- optically active tris- (2,3-epoxypropyl) -isocyanurate is purified by recrystallization using a solvent such as methanol. It is possible to
- R 1 is a fuunyl group or a naphthyl group as an aromatic hydrocarbon group, and indole, benzothiophene, 3,4-dihydro-12 (1H) 1 as an organic group comprising a heterocyclic ring.
- Those having a skeleton of quinolinone, pyridine or the like are preferred.
- the steps (A) and (B) are diluted with a solvent and reacted under milder conditions.
- the solvent only needs to be inert to the reaction.
- aromatic hydrocarbons such as toluene and benzene
- ethers such as dioxane, dimethyloxetane and tetrahydrofuran, methanol, ethanol, 2- Alcohols such as methoxyethanol and 2-ethoxyethanol
- halogenated hydrocarbons such as dichloroethane and chloroform
- ketones such as acetone and methyl ethyl ketone
- nitriles such as acetonitrile
- pyridine Tertiary amines such as triethylamine, amides such as N, N-dimethylformamide, sulfur compounds such as dimethyl sulfoxide, nitrone compounds such as nitroethane and nitrobenzene, esters such as ethyl acetate, and water
- the reaction can be carried out at a temperature between 178 and the boiling point of the solvent. Preferably, it is carried out between room temperature (20 ° C.) and the boiling point of the solvent.
- these solvents can be used using a solvent in which the steps (A) and (B) are the same, or using different solvents.
- the present invention provides a first method in which the steps (A) and (B) are performed continuously, and a step (B) in a preferred solvent after the adduct (4) is isolated and purified in the step (A).
- the second method is mentioned.
- Examples of the compound of the formula (2), which is one of the starting materials used in the process of the present invention, include phenol, naphthol, guaiacol (2-methoxyphenol), 2-cyclopentylphenol, aniline, and 3-fluoro-41-morpholinoa. Diphosphorus, 3-hydroxyl 4-morpholino 1, 2, 5-thiadiazol, chiopheno , Difuunilphosphite, and the like, but the present invention is not limited thereto.
- the amount of the formula (2) used in the present invention is not particularly limited, but is preferably from 3 to 100 mol per 1 mol of tris (2,3-epoxyalkyl) -isocyanurate. More preferably, it is used in the range of 3 mol to 30 mol.
- a catalyst can be used if necessary. It can use any catalyst that promotes the reaction of the epoxy compound.
- examples of the acid catalyst include Lewis acids such as aluminum chloride, tin chloride, boron trifluoride, and 3 (trifluoromethanesulfonic acid) ittibidium.
- inorganic salts such as sodium bromide, lithium bromide, and calcium chloride; inorganic oxides such as titanium oxide and silica; tetraethylammonium bromide; triphenylethylphosphonium bromide; Onion salt. .
- the catalyst used in the step B for decomposing the optically active tris (epoxyalkyl) -isocyanurate adduct represented by the formula (4) a basic substance or an ionic salt is mentioned as a preferable catalyst.
- a basic substance or an ionic salt is mentioned as a preferable catalyst.
- Can be These can be used alone or in combination.
- Examples of the basic substance include inorganic bases such as sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, sodium hydrogen carbonate, and potassium hydrogen carbonate; metal hydrides such as sodium hydride; and potassium t. -Metal alkoxides such as butoxide; organometallic amides such as lithium diisopropylamide; organic metal compounds such as n-butyllithium; pyridine; 4-dimethylaminopyridine, triethylamine, and methyl isopropylamide And an organic base such as dimethylbenzylamine.
- an inorganic base such as sodium hydroxide or hydroxylating sphere, or an organic base such as dimethylpentylamine is used.
- Examples of the honium salt used in the present invention include an ammonium salt, a phosphonium salt, an arsonium salt, a stibonium salt, an oxonium salt, a sulfonium salt, a selenonium salt, a stannonium salt, and a jordonium salt.
- the use of a quaternary ammonium salt or a tertiary sulfonium salt is preferable because side reactions can be suppressed, and a quaternary ammonium salt can be reacted under mild conditions, and the yield and purity are relatively high. It is particularly preferable because a good product is obtained.
- Preferred as the quaternary ammonium salt are, for example, halogenated tribenzylbenzylammonium, norogendanitriethylbenzylammonium, nordogenidanitrioctylmethylammonium, and nordogenidhitritribenzylbenzylammonium. And halogenated trimethylbenzylammonium, halogenated tetramethylammonium, halogenated tetraethylammonium, halogenated tetrabutylammonium, and the like. 1,8-diaza-1 8-benzylbicyclo
- Preferable quaternary phosphonium salts include halogenated tetraalkylphosphonium, such as halogenated tetra-n-butylphosphonium and halogenated tetra-n-propylphosphonium, and halogenated tetramethylphosphonate.
- Halogenated trialkyl benzylphosphonium such as benzylbenzylphosphoric acid, halogenated triphenylmethylphosphonium, halogenated triphenylmethylphosphonium, etc.
- Examples of the halogen used as a counter ion of the onium salt in the present invention include chloride ion (C 1 ⁇ ), bromide ion (Br—), and iodine ion (I—). it can.
- the quaternary ammonium salt can be converted to a hydroxyl group (OH—) by converting it with a hydroxyl group such as NaOH to form a base. Yes, and this can also be used as a preference.
- step (A) and step (B) are performed consecutively, the compound of formula (1), the compound of formula (2) and the catalyst used in step (B) are added simultaneously to the solvent and reacted. Can be.
- an optically active tris- (2,3-epoxyalkyl) monoisocyanurate of the formula (1) and a hydroxyl group-containing compound in which X is an oxygen atom in the compound of the formula (2) are included.
- an optically active oxazolidinone compound in which X is an oxygen atom can be produced also in the formula (3).
- optically active tris- (2,3-epoxyalkyl) -isocyanurate of the formula (1) and an amine-based compound of the formula (2) wherein X is NR 3 (particularly NH) are used.
- the reaction is carried out in the presence of a base or an onium salt to produce an optically active oxazolidinone compound in which X is NR 3 (particularly NH) in formula (3).
- an optically active tris- (2,3-epoxyalkyl) -isocyanurate of the formula (1) an optically active tris- (2,3-epoxypropyl) -isocyanurate in which R 2 is a hydrogen atom, and the formula (2)
- R 2 is a hydrogen atom
- the formula (3) a compound having a hydroxyl group or an amino group, wherein X is an oxygen atom or NH, is reacted in the presence of a base or onium salt.
- a zolidinone compound can be produced.
- the optically active tris (2,3-epoxypropyl) monoisocyanurate in the formula (1) is used in a solvent in the presence of a phenol or aniline of the formula (2) and a base or an oxime.
- a salt By reacting in the presence of a salt, an optically active oxazolidinone compound of the formula (3) can be synthesized.
- step (C) of hydrolyzing the tris (2,3-epoxyalkyl) -isocyanurate adduct of the formula (4) obtained in the step (B) is carried out, and the step of the formula (5) is carried out. Is obtained.
- the step (C) of hydrolyzing the optically active oxazolidinone compound represented by the formula (3) is carried out to obtain the optically active amino alcohol represented by the formula (5).
- the catalyst used in the steps (C) and (C,) include a basic substance and an acidic substance.
- the basic substance include inorganic bases such as sodium hydroxide, potassium hydroxide, lithium hydroxide, sodium carbonate, potassium carbonate, sodium hydrogen carbonate, potassium hydrogen carbonate, cesium carbonate, sodium methoxide, sodium methoxide, and potassium.
- Metal alkoxides such as t-butoxide, and organic bases such as pyridine, 4-dimethylaminopyridine, triethylamine, getyl isopropylamine, and dimethylpendiamine can be used.
- an inorganic base such as sodium hydroxide and potassium hydroxide is used.
- the acidic substance include inorganic acids such as hydrochloric acid, hydrobromic acid, hydrofluoric acid, sulfuric acid, and nitric acid, organic acids such as formic acid, acetic acid, methanesulfonic acid, trifluoroacetic acid, and trifluoromethanesulfonic acid, naphthion, and amberlyst.
- Cation exchange resin can be used.
- Powdered potassium hydroxide 140 mg, (2R, 2R ', 2R ")-tris- (2,3-epoxypropyl) -isocyanurate (optical purity 99% e.e. or more) 6.1 50 ml of benzene with monochrome mouth was added to 8 g and 9.0 g of ⁇ -naphthol, and the mixture was heated and refluxed with stirring, allowed to react for 2 hours, allowed to cool to room temperature, and the resulting crystals were collected by filtration. After washing with water, drying was performed to obtain 13.38 g (melting point: 157.6 to 158.0, yield: 88%) of the title compound as white crystals.
- an optically active oxazolidinone compound which is useful as an intermediate for the production of /?-Blockers, etc., can be easily converted from an optically active tris- (epoxyalkyl) -iso cyanurate compound as a raw material.
- a method of manufacturing can be provided.
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Abstract
Description
明細書 光学活性ォキサゾリジノン化合物の製造法 技術分野 Description Method for producing optically active oxazolidinone compound
本発明は、 /9 -ブロッカー、 ォキサゾリジノ ン系抗菌剤等の製造中間体として 有用な、 光学活性ォキサゾリジノ ン化合物を、 光学活性トリス - (2, 3—ェポ キシアルキル) - イソシァヌレ一ト化合物から製造する方法に関するものである。 背景技術 The present invention provides an optically active oxazolidinone compound, which is useful as an intermediate for the production of / 9-blockers, oxazolidinone antibacterial agents, etc., from an optically active tris- (2,3-epoxyalkyl) -isocyanurate compound. How to do it. Background art
テトラへドロン (T e t r a h e d r o n) 4 3卷、 1 1号、 2 50 5頁 (1 9 8 7年) には、 光学活性ォキサゾリジノン化合物を合成する方法が記載されて いるが、 工程が長く、 必ずしも有効な製造方法とは言えない。 Tetrahedron, vol. 43, No. 11, page 2505 (1989) describes a method for synthesizing optically active oxazolidinone compounds, but the process is long and not necessarily effective. It cannot be said that it is a simple manufacturing method.
テトラへドロン レターズ (T e t r a h e d r o n L e t t e r s) 3 7 卷、 44号、 793 7頁 (1 996年) には、 光学活性ォキサゾリジノン化合物 を製造する方法が、 記載されているが、 ブチルリチウムのような強塩基と、 2倍 量のキラルなェポキシ化合物を用いており、 必ずしも有効な製造法とは言えない ケミス トリー レターズ (C h e m i s t r y L e t t e r s) 1 24 5頁 ( 1 9 9 1年) にも、 キラルなグリシ ドールとベンジルイ ソシァネー トからキラ ルなォキサゾリジノンを得る方法が記載されているが、 この方法で得られる化合 物は 4ーヒ ドロキシメチル体であり、 本発明化合物とは異なっている。 Tetrahedron Letters, Vol. 37, No. 44, pp. 7937 (1996), describes a method for producing an optically active oxazolidinone compound, but the method for producing an optically active oxazolidinone compound is described. The use of a base and twice the amount of a chiral epoxy compound, which is not always an effective method of production, is described in Chemistry Letters, page 1245 (1991). A method for obtaining chiral oxazolidinone from glycidol and benzyl isocyanate is described, but the compound obtained by this method is a 4-hydroxymethyl form, which is different from the compound of the present invention.
テトラへドロン (T e t r a h e d r o n) 54卷、 1 4号、 34 6 5頁 (1 9 9 8年) には、 N— (2 , 3—エポキシプロピル) 一カーバメー トとアミ ン類 からラセミ体のォキサゾリジノ ンを製造する方法が、 テトラへドロン レターズ (T e t r a h e d r o n L e t t e r s ) 1 2号、 8 0 9頁 (1 9 7 1 年) には、 フエニルダリシジルェ一テルとイソシァネー トからラセミ体の才キサ ゾリジノンを製造する方法が、 記載されているが、 光学活性体については記載さ れていない。 Tetrahedron, Vol. 54, No. 14, pp. 3465 (1998) states that N- (2,3-epoxypropyl) carbamate and racemic oxazolidino from amines. The method for producing styrene is described in Tetrahedron Letters, No. 12, p. 809 (1971), as a racemic material from phenyldaricidyl ether and isocyanate. A method for producing oxazolidinone is described, but no description is given for an optically active substance.
また、 米国特許第 3,4 4 6,8 1 4号公報にはラセミ体のトリスー (2, 3 - エポキシプロピル) 一イソシァヌレー トとフエノール類からォキサゾリジノンを 製造する方法が記載されているが、 これまでに光学活性トリス— (2, 3—ェポ キシプロピル) 一イソシァヌレー トから、 光学活性なォキサゾリジノンを製造す る方法は知られていない。 Also, US Pat. No. 3,446,814 discloses a racemic trisux (2,3- A method for producing oxazolidinone from monoisocyanurate and phenols has been described. So far, optically active oxazolidinone has been produced from optically active tris- (2,3-epoxypropyl) isocyanurate. There is no known method.
また、 ォキサゾリジノン化合物は、 加水分解により容易にァミノアルコールに 導く ことが知られている。 例えば、 ジャーナル .ォブ . オーガニックケミストリ ― 、J o u r n a l o i O r g a n i c C h e m i s t r y) ' 、 第 6 2卷、 1 3号、 444 9頁 ( 1 997年) 、 及びジャーナル . ォブ ' アメリカン -ケミ ス ト リ一 (J o u r n a l o f Am e r i c a n C h e m i s t r y) 、 第 It is known that oxazolidinone compounds are easily converted to amino alcohol by hydrolysis. For example, Journal of Organic Chemistry), Vol. 62, No. 13, page 4449 (1997), and Journal of American Chemistry. I (J ournalof Am erican C hemistry)
1 0 5卷、 4 4 99頁 (1 98 3年) に記載されている。 It is described in Vol. 105, p. 499 (1983).
本発明は、 i? -ブロッカー、 ォキサゾリジノ ン系抗菌剤等の製造中間体として 有用な、 光学活性ォキサゾリジノン化合物を簡便に製造する方法を提供しょうと するものである。 本発明のォキサゾリジノ ン化合物は加水分解により、 容易に上 記製造中間体であるァミノプロパノール誘導体に導くことができる。 -ブロッ 力一は、 狭心症や不整脈の治療を初めとして、 高血圧症、 甲状腺機能坑進症、 褐 色細胞腫、 心臓神経症から精神神経科領域、 麻酔科領域に至るまで広範囲な治療 薬として使用されている。 また、 ォキサゾリジノン系抗菌剤である L i n e z 0 An object of the present invention is to provide a method for easily producing an optically active oxazolidinone compound, which is useful as an intermediate for producing an i-blocker or an oxazolidinone antibacterial agent. The oxazolidinone compound of the present invention can be easily converted to the above-mentioned production intermediate aminopropanol derivative by hydrolysis. -Broc is a wide-ranging therapeutic drug from the treatment of angina and arrhythmias, to hypertension, thyroid dysfunction, pheochromocytoma, cardiovascular disease, neuropsychiatry and anesthesia. Has been used as In addition, the oxazolidinone antibacterial agent Linez 0
1 1 d (商品名: Z y v o x) は、 ノ ンコマイシン耐性ブドウ球菌、 連鎖球菌、 嫌気性菌、 結核菌による微生物感染症に対して高い効力を示すことが知られてい る。 11d (trade name: Zyvox) is known to have high efficacy against microbial infections caused by noncomycin-resistant staphylococci, streptococci, anaerobic bacteria and tuberculosis bacteria.
本発明者らは、 上記の課題を解決するため、 研究を重ねた結果、 光学活性トリ ス一 (2, 3—エポキシアルキル) 一イソシァヌレート化合物とフエノール類、 チォフエノール類、 ァニリ ン類を塩基存在下に反応させることにより、 β—プ Ό ッカ一及びォキサゾリジノン系抗菌剤等の製造中間体として有用な、 光学活性ォ キサゾリジノン化合物を簡便に製造できることを見出し、 本発明を完成するに至 つた。 本願発明で原料として使用されるトリス一 (2, 3—エポキシアルキル) 一イソシァヌレートは、 存在する不斉中心が一分子中に 3つと比較的少なく、 結 晶性が良いことから比較的高純度化しゃすく、 高い光学純度で入手が可能な特徴 を持ち、 フヱノール類、 チオフヱノール類、 ァニリ ン類と容易に反応し、 穏和な 条件で高純度のォキサゾリジノン化合物を得ることが出来る, 発明の開示 The present inventors have conducted various studies to solve the above problems, and as a result, have found that an optically active tris (2,3-epoxyalkyl) monoisocyanurate compound and phenols, thiophenols, and anilines can be used in the presence of a base. The present inventors have found that an optically active oxazolidinone compound useful as an intermediate for the production of β-blocker and oxazolidinone-based antibacterial agents and the like can be easily produced by reacting the compound with the compound (1), thereby completing the present invention. Tris- (2,3-epoxyalkyl) monoisocyanurate used as a raw material in the present invention has a relatively small number of asymmetric centers, three in a molecule, and has relatively high purity due to good crystallinity. It is easy to react with phenols, thiophenols, and anilines, and has a mild and mild optically available characteristic. High purity oxazolidinone compound can be obtained under the conditions, disclosure of the invention
本願発明は第 1観点として、 式 (1 ) : According to a first aspect of the present invention, a formula (1):
式 ( 1 ) で表される光学活性トリス一 (2 , 3—エポキシアルキル) 一イソシァヌレー ト と、 式 (2) R 'XHで表される化合物とを反応して得られる、 Equation (1) Which is obtained by reacting an optically active tris- (2,3-epoxyalkyl) -isocyanurate represented by the formula (2) with a compound represented by the formula (2) R′XH,
式 (3) : Equation (3):
式 ( 3 Expression (3
(上記式中、 *は不斉炭素を示し、 Xは 0、 NR3、 P R3, 及び Sを示し、 R1 は 0、 S、 N及び Pからなる群よ り選ばれる 1種以上の原子を含んでも良い炭素 数 1〜 3 6の有機基であり、 R2及び R3は Hまたは、 0、 S、 N及び Pからなる 群よ り選ばれる 1種以上の原子を含んでも良い炭素数 1〜 3 6の有機基を示し、 R '、 R2及び R3はそれぞれ同一でも、 異なっていても良い。 ) で表される光学 活性才キサゾリジノン化合物の製造方法、 (In the above formula, * indicates an asymmetric carbon, X indicates 0, NR 3 , PR 3 , and S, and R 1 is at least one atom selected from the group consisting of 0, S, N, and P Is an organic group having 1 to 36 carbon atoms, wherein R 2 and R 3 are H or carbon atoms which may contain one or more atoms selected from the group consisting of 0, S, N and P R ′, R 2 and R 3 may be the same or different, each representing an organic group of 1 to 36.) A method for producing an optically active oxazolidinone compound represented by the formula:
第 2観点として、 下記 (A) 工程及び (B) 工程 : As a second viewpoint, the following (A) process and (B) process:
(A) 工程 : 式 ( 1 ) で表される光学活性ト リス一 (2 , 3—エポキシアルキ ル) 一イソシァヌレー トと、 式 (2) R'XHで表される化合物とを反応させて 式 (4) : Step (A): An optically active tris (2,3-epoxyalkyl) represented by the formula (1) A) reacting one isocyanurate with a compound represented by the formula (2) R'XH to obtain a compound represented by the formula (4):
式 (4 ) Equation (4)
(上記式中、 *は不斉炭素を示し、 Xは 0、 NR3、 P R3, 及び Sを示し、 R ' は 0、 S、 N及び Fからなる群よ り選ばれる 1種以上の原子を含んでも良い炭素 数 1〜 36の有機基であり、 R2及び R3は Hまたは、 0、 S、 N及び Pからなる 群より選ばれる 1種以上の原子を含んでも良い炭素数 1〜 36の有機基を示し、 R'、 R2及び R3はそれぞれ同一でも、 異なっていても良い。 ) で表される トリ ス一 (2, 3—エポキシアルキル) 一イソシァヌレー トの付加物を得る工程、 及 び (In the above formula, * represents an asymmetric carbon, X represents 0, NR 3 , PR 3 , and S, and R ′ represents at least one atom selected from the group consisting of 0, S, N, and F. Is an organic group having 1 to 36 carbon atoms, wherein R 2 and R 3 are H or 1 to 36 carbon atoms which may contain one or more atoms selected from the group consisting of 0, S, N and P. R ', R 2 and R 3 may be the same or different, respectively, to obtain a tris- (2,3-epoxyalkyl) -isocyanurate adduct represented by the formula: Process, and
(B) 工程 : (A) 工程で得られた光学活性トリスー (2, 3—エポキシアルキ ル) 一イソシァヌレー トの付加物を分解する工程、 よ りなる式 (3) で表される 光学活性ォキサゾリジノン化合物の製造方法、 Step (B): a step of decomposing the optically active tris- (2,3-epoxyalkyl) -isocyanurate adduct obtained in step (A), comprising an optically active oxazolidinone represented by the formula (3): A method for producing a compound,
第 3観点として、 (A) 工程に触媒としてルイス酸、 無機塩、 無機酸化物、 又 はォニゥム塩を添加する第 2観点に記載の光学活性ォキサゾリジノ ン化合物の製 造方法、 As a third aspect, the method for producing an optically active oxazolidinone compound according to the second aspect, wherein a Lewis acid, an inorganic salt, an inorganic oxide, or an ionic salt is added as a catalyst to the step (A),
第 4観点として、 (B) 工程に触媒として塩基又はォニゥム塩を使用する第 2 観点に記載の光学活性ォキサゾリジノン化合物の製造方法、 As a fourth aspect, the method for producing an optically active oxazolidinone compound according to the second aspect, wherein a base or an ionic salt is used as a catalyst in the step (B),
第 5観点として、 R 2が水素である第 1観点乃至第 4観点のいずれか一つに記 載の光学活性ォキサゾリジノン化合物の製造方法、 As a fifth aspect, the method for producing an optically active oxazolidinone compound according to any one of the first to fourth aspects, wherein R 2 is hydrogen,
第 6観点として、 Xが酸素原子である第 1観点乃至第 5観点のいずれか一つに 記載の光学活性ォキサゾリジノン化合物の製造方法、 As a sixth aspect, any one of the first to fifth aspects in which X is an oxygen atom A method for producing an optically active oxazolidinone compound according to the description,
第 7観点として、 Xが NR 3である第 1観点乃至第 5観点のいずれか一つに記 載の光学活性ォキサゾリジノン化合物の製造方法、 Manufacturing method of the as seventh aspect, X is a first aspect to optically active Okisazorijinon compound of placing serial to any one of the fifth aspect is NR 3,
第 8観点として、 Xが 0であり、 R 1が置換されていても良い芳香環又は置換 されていても良い複素環である第 1観点乃至第 5観点のいずれか一つに記載の光 学活性ォキサゾリジノン化合物の製造方法、 As an eighth aspect, the optics according to any one of the first to fifth aspects, wherein X is 0 and R 1 is an optionally substituted aromatic ring or an optionally substituted heterocyclic ring. A method for producing an active oxazolidinone compound,
第 9観点として、 Xが NHであり、 R1が置換されていても良い芳香環又は置 換されていても良い複素環である第 1観点乃至第 5観点のいずれか一つに記載の 光学活性ォキサゾリジノン化合物の製造方法、 As a ninth aspect, the optics according to any one of the first to fifth aspects, wherein X is NH and R 1 is an optionally substituted aromatic ring or an optionally substituted heterocyclic ring. A method for producing an active oxazolidinone compound,
第 1 0観点として、 : R2が水素であり、 且つ Xが酸素原子である第 1観点乃至 第 5観点のいずれか一つに記載の光学活性ォキサゾリジノ ン化合物の製造方法、 第 1 1観点として、 R 2が水素であり、 且つ Xが NHである第 1観点乃至第 5 観点のいずれか一つに記載の光学活性ォキサゾリジノン化合物の製造方法、 第 1 2観点として、 第 2観点乃至第 1 1観点のいずれか一つの製造過程で得ら れる式 (4) の化合物を加水分解して得られる式 (5) : As a tenth aspect, there is provided a method for producing an optically active oxazolidinone compound according to any one of the first to fifth aspects, wherein R 2 is hydrogen and X is an oxygen atom. A method for producing an optically active oxazolidinone compound according to any one of the first to fifth aspects, wherein R 2 is hydrogen and X is NH; and, as a second aspect, a second aspect to a first aspect. Formula (5) obtained by hydrolyzing the compound of Formula (4) obtained in any one of the processes of the aspect:
Hク H
式 ( 5 ) Equation (5)
1 1
(上記式中、 *は不斉炭素を示し、 Xは 0、 NR3、 P R3、 及び Sを示し、 R 1 は 0、 S、 N及び Pからなる群より選ばれる 1種以上の原子を含んでも良い炭素 数 1〜 3 6の有機基であり、 R2及び R3は Hまたは、 0、 S、 N及び Pからなる 群より選ばれる 1種以上の原子を含んでも良い炭素数 1〜 36の有機基を示し、 R R2及び R3はそれぞれ同一でも、 異なっていても良い。 ) で表される光学 活性ァミノアルコール化合物の製造方法、 及び (In the above formula, * represents an asymmetric carbon, X represents 0, NR 3 , PR 3 , and S, and R 1 represents one or more atoms selected from the group consisting of 0, S, N, and P. An organic group having 1 to 36 carbon atoms which may be contained, wherein R 2 and R 3 are H or 1 to 36 carbon atoms which may contain one or more atoms selected from the group consisting of 0, S, N and P And RR 2 and R 3 may be the same or different, respectively.) A method for producing an optically active amino alcohol compound represented by the formula:
第 1 3観点と して、 第 1観点乃至第 1 1観点のいずれか一つで得られた式 As a thirteenth aspect, a formula obtained from any one of the first to the first aspects is used.
(3) の化合物を加水分解して得られる式 (5) で表される光学活性アミノアル コール化合物の製造方法である。 発明を実施するための最良の形態 This is a method for producing an optically active amino alcohol compound represented by the formula (5) obtained by hydrolyzing the compound (3). BEST MODE FOR CARRYING OUT THE INVENTION
本発明の式 (2 ) 、 (3 ) 、 (4 ) および ( 5 ) の化合物において、 Xは 0、 N R 3、 P R 3 , 及び Sを示す。 R 1は 0、 S、 N及び Pからなる群より選ばれる 1種以上の原子を含んでも良い炭素数 1〜 3 6の有機基を示す。 有機基としては 特に限定されるものではない力5、 好ましくは、 アルキル基、 シクロアルキル基等 の脂肪族炭化水素基、 置換されていても良い芳香族炭化水素基、 複素環、 アルコ キシカルボニルアルキル基等が例示される。 R 'は、 以上例示された原子団から 成る炭素数 1〜 3 6の有機基であり、 好ましくは、 炭素数 1〜 1 8の有機基であ る。 In the compounds of the formulas (2), (3), (4) and (5) of the present invention, X represents 0, NR 3 , PR 3 , and S. R 1 represents an organic group having 1 to 36 carbon atoms which may contain one or more atoms selected from the group consisting of 0, S, N and P. Force 5 is not particularly restricted but includes organic group, preferably an alkyl group, an aliphatic hydrocarbon group, cycloalkyl group, optionally substituted aromatic hydrocarbon group, heterocyclic, alkoxycarbonylalkyl And the like. R ′ is an organic group having 1 to 36 carbon atoms, including the atomic groups exemplified above, and is preferably an organic group having 1 to 18 carbon atoms.
R 2及び R 3は Hまたは、 0、 S、 N及び Pからなる群よ り選ばれる 1種以上の 原子を含んでも良い炭素数 1〜 3 6の有機基を示す。 有機基と しては特に限定さ れるものではないが、 好ましくは、 アルキル基、 シクロアルキル基等の脂肪族炭 化水素基、 芳香族炭化水素基、 複素環、 アルコキシカルボニルアルキル基等が例 示される。 以上例示された原子団から成る炭素数 1〜 3 6の有機基であり、 好ま しくは、 炭素数 1〜 1 8の有機基である。 R 2 and R 3 represent H or an organic group having 1 to 36 carbon atoms which may contain one or more atoms selected from the group consisting of 0, S, N and P. The organic group is not particularly limited, but is preferably an aliphatic hydrocarbon group such as an alkyl group or a cycloalkyl group, an aromatic hydrocarbon group, a heterocyclic ring, an alkoxycarbonylalkyl group, or the like. It is. It is an organic group having 1 to 36 carbon atoms comprising the atomic groups exemplified above, and preferably an organic group having 1 to 18 carbon atoms.
更に具体的に: '、 R 2及び R 3を例示する。 More specifically: ', R 2 and R 3 are exemplified.
例えば、 アルキル基としては、 メチル基、 ェチル基、 プロピル基等が、 シクロ アルキル基と しては、 シクロプロピル基、 シクロペンチル基、 シクロへキシル基 等が挙げられる。 For example, the alkyl group includes a methyl group, an ethyl group, a propyl group and the like, and the cycloalkyl group includes a cyclopropyl group, a cyclopentyl group and a cyclohexyl group.
芳香族炭化水素基と しては、 フユニル、 ナフチル等が挙げられる。 Examples of the aromatic hydrocarbon group include fuunyl and naphthyl.
複素環としては、 イ ン ドール、 ベンゾチォフェン、 1 , 2, 5—チアジアゾー ル、 ピリジン等が挙げられる。 Heterocycles include indole, benzothiophene, 1,2,5-thiadiazol, pyridine and the like.
アルコキシカルボニルアルキル基としては、 メ トキシカルポニルメチル基、 ェ トキシカルボ二ルェチル基等が挙げられる。 Examples of the alkoxycarbonylalkyl group include a methoxycarbonylmethyl group and an ethoxycarbonylethyl group.
また、 上記有機基には、 ハロゲン、 アルキル基、 シクロアルキル基、 アルキル アミ ノ基、 アルコキシ基、 アルキルチオ基、 シァノ基、 ニ トロ基、 アルコキシ力 ルポ二ル基、 ヒ ドロキシル基、 ァミ ノ基から選ばれる一種類以上の置換基を有し ていても良く、 その置換基は同一あっても、 異なっていても良い。 次に本発明化合物の製造法について以下に説明する。 In addition, the above-mentioned organic group includes a halogen, an alkyl group, a cycloalkyl group, an alkylamino group, an alkoxy group, an alkylthio group, a cyano group, a nitro group, an alkoxyl group, a hydroxyl group, and an amino group. And may have one or more substituents selected from the group consisting of the same or different substituents. Next, a method for producing the compound of the present invention will be described below.
本発明の好ましい式 (3) で表される光学活性ォキサゾリジノン化合物の製造 法は、 (A) 工程と して式 ( 1 ) に示した光学活性ト リスー (エポキシアルキ レ) 一イソシァヌレー トと、 式 ( 2 ) で表されるフエノール類、 ァニリ ン類を反 応させて、 式 (4) で表される光学活性トリスー (エポキシアルキル) —イソシ ァヌレー ト付加物を得た後、 (B) 工程としてこの付加物を分解する方法である。 本願発明で原料として使用される光学活性トリス一 (2 , 3—エポキシアルキ ル) イソシァヌレー トは、 式 (2) R'XHで示される化合物と容易に反応し、 穏和な条件で高純度の光学活性ォキサゾリジノン化合物を得ることができる。 本法の出発原料である式 (1) は、 (2 R, 2 R, , 2 R" ) または (2 S, 2 S' , 2 S" ) の化合物を示し、 その製造方法と しては特に限定されるもので はない。 例えばトリス (アルキルァリル) イソシァヌ レー トのォレフィ ンの不斉 エポキシ化や、 ラセミ体を酵素などにより動力学的に分割する不斉分割法がある c 例えば光学活性トリスー (2, 3_エポキシプロピル) 一イソシァヌレー トは、 シァヌール酸に対して光学活性なェピクロルヒ ドリ ンを作用させ、 続いて脱水還 流しながら N a OH水溶液を滴下することによって、 脱塩酸反応が起こり、 目的 物である光学活性トリスー (2, 3—エポキシプロピル) 一イソシァヌレー トを 得る事ができる。 The preferred method for producing the optically active oxazolidinone compound represented by the formula (3) according to the present invention comprises, as the step (A), an optically active tris- (epoxyalkylene) -iso-isocyanurate represented by the formula (1): The phenols and anilines represented by (2) are reacted to obtain an optically active tris (epoxyalkyl) -isocyanurate adduct represented by the formula (4). This is a method of decomposing this adduct. The optically active tris- (2,3-epoxyalkyl) isocyanurate used as a raw material in the present invention easily reacts with the compound represented by the formula (2) R'XH, and has a high purity optical property under mild conditions. An active oxazolidinone compound can be obtained. Formula (1), which is a starting material of the present method, represents a compound of (2R, 2R,, 2R ") or (2S, 2S ', 2S"). There is no particular limitation. For example, there are asymmetric epoxidation of tris (alkylaryl) isocyanurate and symmetric olefins, and asymmetric resolution method of kinetically resolving a racemic form with an enzyme or the like. C For example, optically active tris (2,3_epoxypropyl) The isocyanurate is reacted with optically active epichlorohydrin on cyanolic acid, followed by the dropwise addition of an aqueous solution of NaOH while dehydrating and refluxing, whereby a dehydrochlorination reaction takes place, and the desired optically active tris (2) , 3-epoxypropyl) One isocyanurate can be obtained.
本願発明で原料として使用される光学活性ト リスー (2 , 3—エポキシアルキ ル) イソシァヌレー ト と しては、 R 2が水素原子、 メチル基やェチル基等の低級 アルキル基が挙げられ、 例えばトリスー (2, 3—エポキシプロピル) 一イソシ ァヌ レー ト及びトリス (2, 3—エポキシプロピル一 2—メチル) イソシァヌレ ―トを例示する事が出来る。 Examples of the optically active tris (2,3-epoxyalkyl) isocyanurate used as a raw material in the present invention include a hydrogen atom for R 2 and a lower alkyl group such as a methyl group or an ethyl group. (2,3-epoxypropyl) monoisocyanurate and tris (2,3-epoxypropyl-12-methyl) isocyanurate can be exemplified.
本願製法中でも R2が水素原子である場合、 即ち ト リス一 (2, 3—エポキシ プロピル) 一イソシァヌ レー トを用いる場合は、 式 (2) で示される化合物と容 易に反応し、 穏和な条件で高純度の光学活性ォキサゾリジノン化合物を得ること ができるので最も好ましい。 Even when R 2 is a hydrogen atom during the production process of the present application, that is, when tris- (2,3-epoxypropyl) -isocyanurate is used, the compound easily reacts with the compound represented by the formula (2) and is mild. It is most preferable because a high purity optically active oxazolidinone compound can be obtained under the conditions.
本願発明で使用する光学活性な トリスー (2, 3—エポキシアルキル) 一イソ シァヌレートは、 用途の性質上高純度であることが好ま しく、 具体的には純度 9 0 %以上が好ましく、 よ り好ましくは純度 9 5 %以上である。 また、 原料の光学 純度は目的物の光学純度を左右するので重要であり、 好ま しくは光学純度 S 0 % e . e . 以上、 より好ましくは光学純度 9 0 % e . e . 以上である。 The optically active tris- (2,3-epoxyalkyl) monoisocyanurate used in the present invention is preferably of high purity due to the nature of its use. The purity is preferably 0% or more, and more preferably 95% or more. The optical purity of the raw material is important because it affects the optical purity of the target substance, and is preferably S0% e.e. or more, more preferably 90% e.e. or more.
高純度化の方法についても特に限定されるものではないが、 例えば光学活性ト リス一 (2, 3—エポキシプロピル) 一イソシァヌレー トは、 メタノールなどの 溶媒を用いて再結晶することによって高純度化することが可能である。 Although there is no particular limitation on the method of purification, for example, optically active tris- (2,3-epoxypropyl) -isocyanurate is purified by recrystallization using a solvent such as methanol. It is possible to
上記式中で R 1は芳香族炭化水素基と してフユニル基、 ナフチル基が、 複素環 からなる有機基と してイ ン ドール、 ベンゾチォフェン、 3, 4—ジヒ ドロ一 2 ( 1 H ) 一キノリノン、 ピリジン等を骨格とするものが好ましい。 In the above formula, R 1 is a fuunyl group or a naphthyl group as an aromatic hydrocarbon group, and indole, benzothiophene, 3,4-dihydro-12 (1H) 1 as an organic group comprising a heterocyclic ring. Those having a skeleton of quinolinone, pyridine or the like are preferred.
( A ) 工程および (B ) 工程は溶媒で希釈してより穏和な条件で反応させるこ とが望ましい。 溶媒は反応に対して不活性であればよ く、 例えばトルエン、 クロ 口ベンゼン等の芳香族炭化水素類、 ジォキサン、 ジメ トキシェタン、 テ トラヒ ド ロフラン等のェ一テル類、 メタノール、 エタノール、 2—メ トキシエタノール、 2—エトキシエタノール等のアルコール類、 ジクロロェタン、 クロ口ホルム等の ハロゲン化炭化水素類、 アセトン、 メチルェチルケトン等のケ トン類、 ァセ トニ トリル等の二トリル類、 ピリジン、 トリェチルァミ ン等の第 3級ァミン類、 N, N—ジメチルホルムアミ ド等のアミ ド類、 ジメチルスルホキシ ド等の硫黄化合物、 ニトロェタン、 ニトロベンゼン等のニ トロ化合物、 酢酸ェチル等のエステル類、 水、 あるいはそれらの混合物が用いられる。 反応温度は一 7 8でから溶媒の沸点 の間で行うことができる。 好ましく は、 室温 ( 2 0 °C ) から溶媒の沸点の間で行 う ことが望ましい。 また、 これらの溶媒は (A ) 工程および (B ) 工程が同一と なる溶媒を用いて行う ことや、 異なる溶媒を用いて行う ことが出来る。 It is desirable that the steps (A) and (B) are diluted with a solvent and reacted under milder conditions. The solvent only needs to be inert to the reaction. For example, aromatic hydrocarbons such as toluene and benzene, ethers such as dioxane, dimethyloxetane and tetrahydrofuran, methanol, ethanol, 2- Alcohols such as methoxyethanol and 2-ethoxyethanol; halogenated hydrocarbons such as dichloroethane and chloroform; ketones such as acetone and methyl ethyl ketone; nitriles such as acetonitrile; pyridine; Tertiary amines such as triethylamine, amides such as N, N-dimethylformamide, sulfur compounds such as dimethyl sulfoxide, nitrone compounds such as nitroethane and nitrobenzene, esters such as ethyl acetate, and water Alternatively, a mixture thereof is used. The reaction can be carried out at a temperature between 178 and the boiling point of the solvent. Preferably, it is carried out between room temperature (20 ° C.) and the boiling point of the solvent. In addition, these solvents can be used using a solvent in which the steps (A) and (B) are the same, or using different solvents.
従って、 本願発明は (A ) 工程と (B ) 工程は連続して行う第 1方法と、 ( A ) 工程で付加物 (4 ) を単離、 精製後、 好ましい溶媒で (B ) 工程を行う第 2方法が挙げられる。 Therefore, the present invention provides a first method in which the steps (A) and (B) are performed continuously, and a step (B) in a preferred solvent after the adduct (4) is isolated and purified in the step (A). The second method is mentioned.
本願製法中で用いられる一方の原料である式 (2 ) の化合物としては、 例えば フエノール、 ナフ トール、 グアイャコール (2—メ トキシフエノール) 、 2—シ クロペンチルフエノール、 ァニリン、 3 _フルオロー 4一モルホリノア二リン、 3—ヒ ドロキシ一 4—モルホリノ一 1 , 2, 5—チアジアゾ一ル、 チォフエノー ル、 ジフユニルホスフアイ ト、 等が挙げられるが、 本発明はこれらのみに限定さ れるものではない。 Examples of the compound of the formula (2), which is one of the starting materials used in the process of the present invention, include phenol, naphthol, guaiacol (2-methoxyphenol), 2-cyclopentylphenol, aniline, and 3-fluoro-41-morpholinoa. Diphosphorus, 3-hydroxyl 4-morpholino 1, 2, 5-thiadiazol, chiopheno , Difuunilphosphite, and the like, but the present invention is not limited thereto.
本発明で使用される式 (2 ) の量と しては特に限定されないが、 好ましくはト リス一 (2, 3—エポキシアルキル) 一イソシァヌ レー ト 1モルに対して 3モル から 1 0 0モル、 よ り好ま しく は 3モルから 3 0モルの範囲で使用される。 式 ( 1 ) の光学活性トリス一 (エポキシアルキル) 一イ ソシァヌレートを、 式 ( 2 ) で表されるフヱノール類、 ァニリン類と反応させる (A ) 工程では必要に 応じて触媒を用いることができる。 これは、 エポキシ化合物の反応を促進する如 何なる触媒でも使用することができる。 例えば、 酸触媒と しては、 塩化アルミ二 ゥム、 塩化スズ、 3フッ化ホウ素、 3 (トリフルォロメタンスルホン酸) イ ツテ ルビゥム等のルイス酸を挙げることができる。 また、 臭化ナトリウム、 臭化リチ ゥム、 塩化カルシウム等の無機塩、 酸化チタン、 シリ カ等の無機酸化物、 テ トラ ェチルアンモニゥムブロミ ド、 ト リ フエニルェチルホスフ ォニゥムブロミ ド等の ォニゥム塩が挙げられる。 。 The amount of the formula (2) used in the present invention is not particularly limited, but is preferably from 3 to 100 mol per 1 mol of tris (2,3-epoxyalkyl) -isocyanurate. More preferably, it is used in the range of 3 mol to 30 mol. In the step (A) of reacting the optically active tris- (epoxyalkyl) -1-isocyanurate of the formula (1) with the phenols and anilines represented by the formula (2), a catalyst can be used if necessary. It can use any catalyst that promotes the reaction of the epoxy compound. For example, examples of the acid catalyst include Lewis acids such as aluminum chloride, tin chloride, boron trifluoride, and 3 (trifluoromethanesulfonic acid) ittibidium. In addition, inorganic salts such as sodium bromide, lithium bromide, and calcium chloride; inorganic oxides such as titanium oxide and silica; tetraethylammonium bromide; triphenylethylphosphonium bromide; Onion salt. .
一方、 式 (4 ) で表される光学活性トリスー (エポキシアルキル) —イソシァ ヌ レ一 ト付加物を分解する B工程に用いられる触媒と しては、 塩基性物質または ォニゥム塩が好ましい触媒として挙げられる。 これらは、 単独もしく は組み合わ せて使用することができる。 On the other hand, as the catalyst used in the step B for decomposing the optically active tris (epoxyalkyl) -isocyanurate adduct represented by the formula (4), a basic substance or an ionic salt is mentioned as a preferable catalyst. Can be These can be used alone or in combination.
塩基性物質としては例えば水酸化ナト リウム、 水酸化カリウム、 炭酸ナトリウ ム、 炭酸カリ ウム、 炭酸水素ナ ト リ ウム、 炭酸水素カ リウム等の無機塩基、 水素 化ナトリゥム等の金属水素化物、 カリウム t-ブトキシ ド等の金属アルコキシ ド、 リチウムジィソプロピルァミ ド等の有機金属アミ ド、 n—プチルリチウム等の有 機金属化合物ピリジン、 4—ジメチルァミノピリジン、 ト リェチルァミ ン、 ジェ チルイソプロピルアミ ン、 ジメチルベンジルアミ ン等の有機塩基を用いることが できる。 好ま しくは、 水酸化ナトリウム、 水酸化力リゥム等の無機塩基、 ジメチ ルペンジルァミン等の有機塩基を用いることが望ましい。 Examples of the basic substance include inorganic bases such as sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, sodium hydrogen carbonate, and potassium hydrogen carbonate; metal hydrides such as sodium hydride; and potassium t. -Metal alkoxides such as butoxide; organometallic amides such as lithium diisopropylamide; organic metal compounds such as n-butyllithium; pyridine; 4-dimethylaminopyridine, triethylamine, and methyl isopropylamide And an organic base such as dimethylbenzylamine. Preferably, an inorganic base such as sodium hydroxide or hydroxylating sphere, or an organic base such as dimethylpentylamine is used.
また本願発明で使用されるォニゥム塩は、 例えばアンモニゥム塩、 ホスフォニ ゥム塩、 アルソニゥム塩、 スチボニゥム塩、 ォキソニゥム塩、 スルホニゥム塩、 セレノニゥム塩、 スタンノニゥム塩、 ョードニゥム塩が例示される。 中でも第 4 級アンモニゥム塩或いは第 3級スルホ二ゥム塩を使用することによって副反応を 抑えることができるので好ましく、 第 4級アンモニゥム塩は、 穏和な条件で反応 でき、 収率、 純度と もに比較的良いものが得られるので特に好ましい。 Examples of the honium salt used in the present invention include an ammonium salt, a phosphonium salt, an arsonium salt, a stibonium salt, an oxonium salt, a sulfonium salt, a selenonium salt, a stannonium salt, and a jordonium salt. Fourth among them The use of a quaternary ammonium salt or a tertiary sulfonium salt is preferable because side reactions can be suppressed, and a quaternary ammonium salt can be reacted under mild conditions, and the yield and purity are relatively high. It is particularly preferable because a good product is obtained.
次に本願癸明で使用されるォニゥム塩を具体的に例示する。 Next, specific examples of onium salts used in the present invention are given.
第 4級アンモニゥム塩として好ましいものとしては、 例えばハロゲン化トリェチ ルベンジルアンモニゥム、 ノヽロゲンィ匕トリェチルベンジルアンモニゥム、 ノヽロゲ ンィ匕トリオクチルメチルアンモニゥム、 ノヽロゲンィヒトリブチルベンジルアンモニ ゥム、 ハロゲン化トリメチルベンジルアンモニゥム、 ハロゲン化テ トラメチルァ ンモニゥム、 ハロゲン化テ トラェチルアンモニゥム、 ハロゲンィ匕テ トラブチルァ ンモニゥム、 等が挙げられる。 さらに 1 , 8—ジァザ一 8 —ベンジルビシクロPreferred as the quaternary ammonium salt are, for example, halogenated tribenzylbenzylammonium, norogendanitriethylbenzylammonium, nordogenidanitrioctylmethylammonium, and nordogenidhitritribenzylbenzylammonium. And halogenated trimethylbenzylammonium, halogenated tetramethylammonium, halogenated tetraethylammonium, halogenated tetrabutylammonium, and the like. 1,8-diaza-1 8-benzylbicyclo
( 5 , 4 , 0 ) ゥンデセン一 7 、 1 , 5—ジァザービシクロ (4 , 3 , 0 ) ノネ ンー 5或レ 1 一メチルイ ミダゾ一ル、 1一べンジルイ ミ ダゾ一ル等のィミ ダゾ —ル系化合物やピリジン、 ピコリン等に代表される置換ピリジン等のァミン系の ィ匕合物と、 ハロゲンィ匕ベンジル、 ノヽロゲン化メチル、 ハロゲン化工チル等のハロ ゲン化炭化水素を反応させて得られるアンモニゥム塩も好適な触媒と して例示す ることができる。 (5,4,0) ndene-1,7,1,5-diazabicyclo (4,3,0) none-5 or imidazole, such as 1-methylimidazole, 1-benzylimidazole, etc. Ammonia obtained by reacting a compound such as an amine compound such as a substituted pyridine represented by pyridine, picoline or the like, with a halogenated hydrocarbon such as halogenated benzyl, methyl phenol, methylated chloro or the like. Salts can also be exemplified as suitable catalysts.
第 4級ホスフォニゥム塩として好ましいものとしては、 例えばハロゲン化テト ラ n—ブチルホスフォニゥム、 ハロゲン化テ トラ n—プロピルホスフォニゥム等 のハロゲンィ匕テ トラアルキルホスフォニゥム、 ハロゲンィ匕トリェチルベンジルホ スフ才ニゥム等のハロゲンィ匕トリアルキルべンジルホスフォニゥム、 ノヽロゲンィ匕 トリフエニルメチルホスフォニゥム、 ノヽロゲンィヒトリフエニルェチルホスフォニ ゥム等のハロゲンィ匕トリフエニルモノアルキルホスフォニゥム、 ノヽロゲンィ匕トリ フエニルベンジルホスフォニゥム、 ノヽロゲンィ匕テトラフェニルホスフォニゥム、 ハロゲン化トリ トリルモノアリールホスフォニゥム、 或いはハロゲンィ匕トリ トリ ルモノアルキルホスフォニゥムが挙げられる。 Preferable quaternary phosphonium salts include halogenated tetraalkylphosphonium, such as halogenated tetra-n-butylphosphonium and halogenated tetra-n-propylphosphonium, and halogenated tetramethylphosphonate. Halogenated trialkyl benzylphosphonium, such as benzylbenzylphosphoric acid, halogenated triphenylmethylphosphonium, halogenated triphenylmethylphosphonium, etc. Alkylphosphonium, hydrogenated triphenylbenzylphosphonium, hydrogenated tetraphenylphosphonium, tritolyl monoarylphosphonated halide, or halogenated tritolylmonoalkylphosphonium Is mentioned.
本願発明でォニゥム塩の対イオンとして使用されるハロゲンを例示すると、 塩 素イオン (C 1— ) 、 臭素イオン (B r—) 、 ヨウ素イオン ( I— ) 等を好適なも のとして挙げる事ができる。 第 4級アンモニゥム塩は、 N a O H等のアル力リで 処理することによって対イオンを水酸基 (O H—) に変換し、 塩基とすることが でき、 これもまた好ましいものとして使用することができる。 Examples of the halogen used as a counter ion of the onium salt in the present invention include chloride ion (C 1−), bromide ion (Br—), and iodine ion (I—). it can. The quaternary ammonium salt can be converted to a hydroxyl group (OH—) by converting it with a hydroxyl group such as NaOH to form a base. Yes, and this can also be used as a preference.
(A) 工程と (B) 工程を連続して行う場合は、 式 (1 ) の化合物と式 (2) の化合物と (B) 工程で用いる触媒とを、 同時に溶媒に添加して反応させること ができる。 When step (A) and step (B) are performed consecutively, the compound of formula (1), the compound of formula (2) and the catalyst used in step (B) are added simultaneously to the solvent and reacted. Can be.
本願発明の具体的な態様の一つと して、 式 (1 ) の光学活性トリスー (2, 3 —エポキシアルキル〉 一イソシァヌレー トと、 式 (2) の化合物において Xが酸 素原子となる水酸基含有化合物とを、 塩基又はォニゥム塩の存在下に反応させ、 式 (3) においても; Xが酸素原子からなる光学活性ォキサゾリジノン化合物を生 成する事が出来る。 As one specific embodiment of the present invention, an optically active tris- (2,3-epoxyalkyl) monoisocyanurate of the formula (1) and a hydroxyl group-containing compound in which X is an oxygen atom in the compound of the formula (2) are included. By reacting the compound with a base or an onium salt, an optically active oxazolidinone compound in which X is an oxygen atom can be produced also in the formula (3).
また、 式 (1) の光学活性ト リス一 (2, 3—エポキシアルキル) 一イソシァ ヌ レー トと、 式 (2) の化合物において Xが N R 3 (特に NH) となるアミ ン系 化合物とを、 塩基又はォニゥム塩の存在下に反応させ、 式 (3) においても Xが NR3 (特に NH) からなる光学活性ォキサゾリジノ ン化合物を生成する事が出 来る。 Further, the optically active tris- (2,3-epoxyalkyl) -isocyanurate of the formula (1) and an amine-based compound of the formula (2) wherein X is NR 3 (particularly NH) are used. The reaction is carried out in the presence of a base or an onium salt to produce an optically active oxazolidinone compound in which X is NR 3 (particularly NH) in formula (3).
そして、 式 (1 ) の光学活性トリスー (2, 3—エポキシアルキル) 一イソシ ァヌレー トにおいて、 R2が水素原子となる光学活性トリスー (2 , 3—ェポキ シプロピル) 一イソシァヌレー トと、 式 (2) の化合物において Xが酸素原子又 は NHとなる水酸基又はァミノ基含有化合物とを、 塩基又はォニゥム塩の存在下 に反応させ、 式 (3) においても Xが酸素原子又は NHからなる光学活性ォキサ ゾリジノン化合物を生成する事が出来る。 Then, in the optically active tris- (2,3-epoxyalkyl) -isocyanurate of the formula (1), an optically active tris- (2,3-epoxypropyl) -isocyanurate in which R 2 is a hydrogen atom, and the formula (2) In the compound of formula (3), a compound having a hydroxyl group or an amino group, wherein X is an oxygen atom or NH, is reacted in the presence of a base or onium salt. A zolidinone compound can be produced.
特に好ましい態様と して、 式 (1) において光学活性ト リス一 (2, 3—ェポ キシプロピル) 一イソシァヌ レー トを溶媒中、 式 (2) のフヱノール類又はァニ リン類と塩基又はォニゥム塩の存在下に反応させることにより、 式 (3) の光学 活性ォキサゾリジノン化合物を合成することができる。 In a particularly preferred embodiment, the optically active tris (2,3-epoxypropyl) monoisocyanurate in the formula (1) is used in a solvent in the presence of a phenol or aniline of the formula (2) and a base or an oxime. By reacting in the presence of a salt, an optically active oxazolidinone compound of the formula (3) can be synthesized.
また、 本願発明では (B) 工程で得られる式 (4 ) のト リス一 (2, 3—ェポ キシアルキル) —イソシァヌレー トの付加物を加水分解する (C) 工程を行い、 式 (5) で表される光学活性ァミノアルコールが得られる。 Also, in the present invention, the step (C) of hydrolyzing the tris (2,3-epoxyalkyl) -isocyanurate adduct of the formula (4) obtained in the step (B) is carried out, and the step of the formula (5) is carried out. Is obtained.
また、 式 (3) で表される光学活性ォキサゾリジノ ン化合物を加水分解する (C ) 工程を行い、 式 (5) で表される光学活性ァミノアルコールが得られる。 これら (C) 工程及び (C, ) 工程に用いられる触媒として、 塩基性物質又は 酸性物質が上げられる。 塩基性物質としては例えば水酸化ナトリウム、 水酸化力 リ ウム、 水酸化リチウム、 炭酸ナトリウム、 炭酸カリウム、 炭酸水素ナトリウム、 炭酸水素力リウム、 炭酸セシウム等の無機塩基、 ナ トリウムメ トキシド、 ナトリ ゥムェトキシド、 カリウム t—ブトキシド等の金属アルコキシ ド、 ピリジン、 4 ージメチルァミノピリジン、 トリェチルァミ ン、 ジェチルイソブロピルァミ ン、 ジメチルペンジルァミン等の有機塩基を用いることができる。 好ましくは、 水酸 化ナトリウム、 水酸化カリウム等の無機塩基を用いることが好ましい。 酸性物質 としては例えば塩酸、 臭化水素酸、 フッ化水素酸、 硫酸、 硝酸等の無機酸、 蟻酸、 酢酸、 メタンスルホン酸、 トリフルォロ酢酸、 トリフルォロメ タンスルホン酸等 の有機酸、 ナフイオン、 アンバーリスト等の陽イオン交換樹脂を用いる事が出来 る。 Further, the step (C) of hydrolyzing the optically active oxazolidinone compound represented by the formula (3) is carried out to obtain the optically active amino alcohol represented by the formula (5). Examples of the catalyst used in the steps (C) and (C,) include a basic substance and an acidic substance. Examples of the basic substance include inorganic bases such as sodium hydroxide, potassium hydroxide, lithium hydroxide, sodium carbonate, potassium carbonate, sodium hydrogen carbonate, potassium hydrogen carbonate, cesium carbonate, sodium methoxide, sodium methoxide, and potassium. Metal alkoxides such as t-butoxide, and organic bases such as pyridine, 4-dimethylaminopyridine, triethylamine, getyl isopropylamine, and dimethylpendiamine can be used. Preferably, an inorganic base such as sodium hydroxide and potassium hydroxide is used. Examples of the acidic substance include inorganic acids such as hydrochloric acid, hydrobromic acid, hydrofluoric acid, sulfuric acid, and nitric acid, organic acids such as formic acid, acetic acid, methanesulfonic acid, trifluoroacetic acid, and trifluoromethanesulfonic acid, naphthion, and amberlyst. Cation exchange resin can be used.
また、 (C) 工程及び (C, ) 工程の溶媒は、 (A) 工程及び (B) 工程に用 いられる溶媒と同じ溶媒を使用する事が出来る。 次に実施例により、 本発明の内容を具体的に説明するが、 本発明はこれらのみ に限定されるべきものではない。 In addition, the same solvent as used in the steps (A) and (B) can be used as the solvent in the steps (C) and (C,). Next, the content of the present invention will be specifically described with reference to examples, but the present invention should not be limited to these.
実施例 1 Example 1
( 5 R) 一 5— ( 1—ナフチル才キシメチル) 一ォキサゾリジン一 2—オンの 製造 Production of (5R) -1-5- (1-naphthyl xymethyl) oxazolidine-1-one
粉末状水酸化力リウム 1 40 mg、 (2 R, 2 R ' , 2 R" ) — ト リス一 (2, 3—エポキシプロピル) 一イソシァヌレート (光学純度 99 % e. e . 以上) 6. 1 8 g、 α—ナフ トール 9. 0 gにモノクロ口ベンゼン 5 0m l を加え、 攪拌し ながら加熱還流した。 2時間反応後、 室温まで放冷し、 生じた結晶を濾取した。 結晶をエタノールで洗浄後、 乾燥して表題化合物 1 3. 3 8 g (融点 1 5 7. 6〜 1 5 8. 0 、 収率8 8%) を白色結晶として得た。 Powdered potassium hydroxide 140 mg, (2R, 2R ', 2R ")-tris- (2,3-epoxypropyl) -isocyanurate (optical purity 99% e.e. or more) 6.1 50 ml of benzene with monochrome mouth was added to 8 g and 9.0 g of α-naphthol, and the mixture was heated and refluxed with stirring, allowed to react for 2 hours, allowed to cool to room temperature, and the resulting crystals were collected by filtration. After washing with water, drying was performed to obtain 13.38 g (melting point: 157.6 to 158.0, yield: 88%) of the title compound as white crystals.
上記結晶の比旋光度は、 [a] D 20 - 1 3. 9 6° (c = 0. 8 0 , E t O H) であった。 The specific rotation of the crystal was [a] D 20 -1 3.96 ° (c = 0.80, EtOH).
また、 表題化合物の文献値は、 テトラへドロン (T e t r a h e d r o n) 4 3巻、 1 1号、 2 50 5頁 (1 9 8 7年) によれば、 [。] 。一 1 2. 1° (c = 0. 4 6, E t OH) であった。 The literature value of the title compound is tetrahedron. According to Vol. 3, No. 1, pp. 2505 (1989). ]. It was 12.1 ° (c = 0.446, EtOH).
実施例 2 Example 2
( 5 S) - 5 - ( 1—ナフチルォキシメチル) 一ォキサゾリジン一 2—オンの 製造 Production of (5S) -5- (1-naphthyloxymethyl) oxazolidine-1-one
粉末状水酸化カリウム 3 0mg、 ( 2 S , 2 S' , 2 S " ) ー トリス一 (2, 3—エポキシプロピル) —イソシァヌレート (光学純度 99%e. e . 以上) 1. 02 g、 a—ナフ トール 1. 5 gにモノクロ口ベンゼン 2 0 m 1 を加え、 携拌し ながら加熱還流した。 2時間反応後、 室温まで放冷し、 生じた結晶を濾取した。 結晶をエタノールで洗浄後、 乾燥して表題化合物 2. 04 g (融点 1 5 6. 2 - 1 5 6. 6 °C、 収率 8 1 %) を白色結晶として得た。 Powdered potassium hydroxide 30mg, (2S, 2S ', 2S ")-tris-one (2,3-epoxypropyl) -isocyanurate (optical purity 99% e.e. Or more) 1.02g, a — To 1.5 g of naphthol was added 20 ml of benzene having a monochrome mouth, and the mixture was heated and refluxed with stirring, allowed to react for 2 hours, allowed to cool to room temperature, and the resulting crystals were collected by filtration. Thereafter, drying was performed to obtain 2.04 g (melting point: 156.2-156.6 ° C, yield: 81%) of the title compound as white crystals.
上記結晶の比旋光度は、 [ « ] D20+ 1 3. 2 5° ( c = 0. 8 0 , E t O H) であった。 Specific rotation of the crystal was [ «] D 20 + 1 3. 2 5 ° (c = 0. 8 0, E t OH).
また、 表題化合物の文献値は、 テトラへドロン (T e t r a h e d r o n) 4 3卷、 1 1号、 2 5 0 5頁 ( 1 9 8 7年) によれば、 [« ] 。+ 1 2. 2° ( c = 0. 80, E t 0 H) であった。 The literature value of the title compound is [«] according to Tetrahedron (Vol. 43, No. 11, pp. 2505 (1989)). + 12.2 ° (c = 0.80, Et0H).
実施例 3 Example 3
( 5 S) — 5— (フエニルアミノメチル) 一ォキサゾリジン一 2—オンの製造 A工程) : (2 S, 2 S ' , 2 S" ) — トリス一 (2—ヒ ドロキシー 3—フエ ニルァミノプロピル) 一イソシァヌレー トの製造 (5S) — 5- (Phenylaminomethyl) oxazolidin-2-one Production Step A): (2S, 2S ', 2S ") — Tris-1 (2-hydroxy-3-phenyl) Production of minopropyl) isocyanurate
ァニリン 1 1. 2 g、 エタノール 1 0m l に (2 S, 2 S' , 2 S" ) — トリ ス一 (2 , 3—エポキシプロピル) 一イソシァヌ レー ト (光学純度 99% e. e . 以上) 1. 2 gを加え、 室温で一日攪拌した。 反応終了後、 減圧下過剰のァニリ ンを除去し、 得られた粗物をカラムクロマトグラフィー (CHC 13/M e OH = 9 8X2) で精製して標題化合物 1. 9 g (収率 8 1 %) をガラス状化合物と して得た。 (2S, 2S ', 2S ")-tris- (2,3-epoxypropyl) -isocyanurate (optical purity 99% e.e. or more) in 11.2 g of aniline and 10 ml of ethanol ) 1. 2 g was added, day was. after the reaction stirred at room temperature, was removed under reduced pressure excess Aniri down, the resulting crude was purified by column chromatography (CHC 1 3 / M e OH = 9 8X2) Then, 1.9 g (yield 81%) of the title compound was obtained as a glassy compound.
Ή -N R (p pm, C DC 13) : 3. 0 7 (d d, 1 H, J = 1 3 H z, 5 H z) 、 3. 1 8 (d d, 1 H, J = 1 3 H z , 3 H z) 、 3. 54 (b s, 2 H) 、 3. 8 8 ( d , 1 H, J = l l H z) 、 4. 0 5 - 4. 2 3 (m, 2 H) 、 6. 60 (d , 1 H, J = 8 H z) 、 6. 72 ( t, 1 H, J = 8 H z) 、 7. 1 5 ( t, 1 H, J = 8 H z ) Ή -NR (p pm, C DC 1 3): 3. 0 7 (dd, 1 H, J = 1 3 H z, 5 H z), 3. 1 8 (dd, 1 H, J = 1 3 H z, 3 Hz), 3.54 (bs, 2 H), 3.88 (d, 1 H, J = ll Hz), 4.05-4.23 (m, 2 H), 6.60 (d, 1 H, J = 8 Hz), 6.72 (t, 1 H, J = 8 Hz), 7.15 (t, 1 H, J = 8 Hz) )
B工程) : (5 S) — 5— (フエニルアミノメチル) 一ォキサゾリジン一 2— オンの製造 Step B): Production of (5S) -5- (phenylaminomethyl) oxazolidin-12-one
(2 S, 2 S ' , 2 S " ) — トリスー (2 - ヒ ドロキシ一 3—フエニルァミノ プロピル) 一イソシァヌレー ト 0. 6 g、 エタノール 8 m 1に水酸化ナトリウム 0. 2 gを加え攪拌しながら加熱還流した。 1時間反応後、 室温まで放冷し、 1 N塩酸で中和後溶媒を留去した。 エタノールで不溶物を除去後濃縮して粗物を得 た。 その粗物を酢酸ェチルで洗浄することによ り標題化合物 0. 3 2 g (融点 1 6 1. 2 - 1 6 1. 7 °C、 収率 5 3 %) を白色結晶と して得た。 [。 ] 。2°— 1 5. 6° (c = 0. 1 1, E t OH) o (2S, 2S ', 2S ") — Tris (2-hydroxy-13-phenylaminopropyl) monoisocyanurate (0.6 g), ethanol (8 ml), sodium hydroxide (0.2 g), and stirring After heating for 1 hour, the reaction was allowed to cool to room temperature, neutralized with 1N hydrochloric acid, and the solvent was distilled off.The insoluble matter was removed with ethanol, followed by concentration to obtain a crude product. by the washing Ri title compound 0. 3 2 g in. - [.]. (melting point 1 6 1. 2 1 6 1. 7 ° C, yield 3%) as a white crystalline 2 ° — 15.6 ° (c = 0.11, 1, E t OH) o
1 H - NM R ( p p m, CD C 1 3 + DMS O d — 6) : 2. 9 7 - 3. 2 0 (m, 2 H) 、 3. 20 - 3. 3 8 (m, 2 H) 、 3. 7 8 - 3. 90 (m, 1 H) 、 4. 60 (b s , 1 H) 、 6. 1 1 (b s , 1 H) 、 6. 6 1 (d, 1 H, J = 8 H z ) 、 6. 62 (t , 1 H, J = 8 H z) 、 7. 1 1 ( t , 1 H, J = 8 H z ) 1 H - NM R (ppm, CD C 1 3 + DMS O d - 6): 2. 9 7 - 3. 2 0 (m, 2 H), 3. 20 - 3. 3 8 (m, 2 H) , 3.78-3.90 (m, 1 H), 4.60 (bs, 1 H), 6.11 (bs, 1 H), 6.61 (d, 1 H, J = 8 Hz), 6.62 (t, 1H, J = 8Hz), 7.11 (t, 1H, J = 8Hz)
実施例 4 Example 4
(2 S) — 1— ( 1—ナフチルォキシ) 一 3—アミノー 2—プロパノ一ルの製 (2 S) — 1— (1—naphthyloxy) 1-3-amino-2-propanol
2. 4 3 gの ( 5 S) — 5— ( 1—ナフチルォキシメチル) 一ォキサゾリジン — 2—オン、 1 0m 1のエタノール、 1 0m 1の水に水酸化ナトリウム 1. 7 g を加え、 攪拌しながら加熱還流した。 2時間反応後、 溶媒を留去し、 酢酸ェチル 1 N- H C 1 を加え撹拌した。 水層に、 1 N— N a OHを加え、 弱アルカリ性に した後、 酢酸ェチルで抽出した。 有機層を無水硫酸ナ トリ ウムで乾燥後、 濃縮し て目的物 1. 2 5 gを得た (収率 5 2 %) 。 融点は 1 2 1〜; 1 2 2 であり、 [ a ] D2 0 - 1 2. 5° (c = 1. 0, 9 5 %E t OH) であった。 (文献値 2. Add 1.7 g of sodium hydroxide to 43 g of (5S) — 5— (1-naphthyloxymethyl) oxazolidine — 2-one, 10 ml of ethanol, and 10 ml of water. The mixture was heated under reflux with stirring. After reacting for 2 hours, the solvent was distilled off, and ethyl acetate 1N-HC1 was added and stirred. The aqueous layer was made weakly alkaline by adding 1 N—NaOH and then extracted with ethyl acetate. The organic layer was dried over anhydrous sodium sulfate and concentrated to obtain 1.25 g of the desired product (yield: 52%). Melting point 1 2 1; a 1 2 2, [a] D 2 0 - was 1 2. 5 ° (c = 1. 0, 9 5% E t OH). (Literature value
1 1. 0° (c = 0. 8 6, E t OH) ) 。 11.0 ° (c = 0.86, EtOH)).
Ή-NMR (p p m, C DC 1 3 ) : 2. 2 7 (b s, 3 H) , 2. 9 0 - 3. 00 (m, 1 H) , 3. 0 0— 3. 1 0 (m, 1 H) , 4. 02 - 4. 20 (m, 3 H) , 6. 75 - 6. 85 (m, 1 H) , 7. 30— 7. 5 5 (m, 4 H) , 7. 7 5 - 7. 85 (m, 1 H) , 8. 20 - 8. 30 (m, 1 H) 産業上の利用可能性 Ή-NMR (ppm, C DC 13): 2.27 (bs, 3 H), 2.90-3.00 (m, 1 H), 3.00—3.10 (m, 1 H), 4.02-4.20 (m, 3 H), 6.75-6.85 (m, 1 H), 7.30—7.55 (m, 4 H), 7.75-7.85 (m, 1 H) , 8.20-8.30 (m, 1 H) Industrial applicability
本製造法により、 /?—ブロッカー等の製造中間体と して有用な、 光学活性ォキ サゾリジノ ン化合物を、 光学活性ト リス一 (エポキシアルキル) —イ ソシァヌ レ ― ト化合物を原料として簡便に製造する方法を提供することができる。 By this production method, an optically active oxazolidinone compound, which is useful as an intermediate for the production of /?-Blockers, etc., can be easily converted from an optically active tris- (epoxyalkyl) -iso cyanurate compound as a raw material. A method of manufacturing can be provided.
Claims
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| JP24330999 | 1999-08-30 | ||
| JP11/243309 | 1999-08-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US10219670B2 (en) | 2014-09-05 | 2019-03-05 | Tennant Company | Systems and methods for supplying treatment liquids having nanobubbles |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3446814A (en) * | 1965-07-24 | 1969-05-27 | Henkel & Cie Gmbh | Process for the preparation of substituted oxazolidones |
| JPH0713338A (en) * | 1993-06-18 | 1995-01-17 | Iwatsu Electric Co Ltd | Plate making machine |
| WO1999045005A1 (en) * | 1998-03-02 | 1999-09-10 | Nissan Chemical Industries, Ltd. | Optically active epoxy compound |
-
2000
- 2000-08-29 WO PCT/JP2000/005829 patent/WO2001016118A1/en not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3446814A (en) * | 1965-07-24 | 1969-05-27 | Henkel & Cie Gmbh | Process for the preparation of substituted oxazolidones |
| JPH0713338A (en) * | 1993-06-18 | 1995-01-17 | Iwatsu Electric Co Ltd | Plate making machine |
| WO1999045005A1 (en) * | 1998-03-02 | 1999-09-10 | Nissan Chemical Industries, Ltd. | Optically active epoxy compound |
Non-Patent Citations (1)
| Title |
|---|
| BOLOGNA, CARDILLO G. ET AL.: "An efficient synthesis of (R)-(+)- and (S)-(-)- propranolol from resolved 5-iodomethyloxazolidin-2-ones", TETRAHEDRON, vol. 43, no. 11, 1987, pages 2505 - 2512, XP002934221 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10219670B2 (en) | 2014-09-05 | 2019-03-05 | Tennant Company | Systems and methods for supplying treatment liquids having nanobubbles |
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