WO2000066573A2 - Banques combinatoires oxa, preparation et utilisations - Google Patents
Banques combinatoires oxa, preparation et utilisations Download PDFInfo
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- WO2000066573A2 WO2000066573A2 PCT/FR2000/001138 FR0001138W WO0066573A2 WO 2000066573 A2 WO2000066573 A2 WO 2000066573A2 FR 0001138 W FR0001138 W FR 0001138W WO 0066573 A2 WO0066573 A2 WO 0066573A2
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- hydrazide
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D271/00—Heterocyclic compounds containing five-membered rings having two nitrogen atoms and one oxygen atom as the only ring hetero atoms
- C07D271/02—Heterocyclic compounds containing five-membered rings having two nitrogen atoms and one oxygen atom as the only ring hetero atoms not condensed with other rings
- C07D271/10—1,3,4-Oxadiazoles; Hydrogenated 1,3,4-oxadiazoles
- C07D271/113—1,3,4-Oxadiazoles; Hydrogenated 1,3,4-oxadiazoles with oxygen, sulfur or nitrogen atoms, directly attached to ring carbon atoms, the nitrogen atoms not forming part of a nitro radical
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- C—CHEMISTRY; METALLURGY
- C40—COMBINATORIAL TECHNOLOGY
- C40B—COMBINATORIAL CHEMISTRY; LIBRARIES, e.g. CHEMICAL LIBRARIES
- C40B40/00—Libraries per se, e.g. arrays, mixtures
Definitions
- the present invention relates to the field of combinatorial chemistry. It relates in particular to new product libraries, their constitution, and their uses, in particular for the identification or optimization of products of interest.
- the present invention can be implemented in the pharmaceutical (in particular therapeutic or vaccine), chemical, agro-food (insecticides, herbicides), textile, etc. fields.
- Combinatorial chemistry is a rapidly developing technological field. It makes it possible to generate banks of synthetic molecules of very varied structures and compositions, useful in the development of new industrial products. Combinatorial chemistry therefore involves appropriate methods of producing libraries of compounds, as well as efficient methods of screening such libraries.
- the present invention now relates to new methods and compositions for the preparation of combinatorial libraries.
- One aspect of the invention lies more particularly in new combinatorial libraries of compounds. Another aspect of the invention lies in optimized methods of synthesis of such banks.
- the invention also relates to the use of banks, in particular for the search and / or optimization of "leads", as well as screening and / or profiling methods using the banks of the invention.
- the invention further relates to kits or supports comprising compounds or libraries defined in the present application.
- a first object of the invention therefore relates to new combinatorial libraries of compounds. More particularly, a first subject of the invention relates to a combinatorial library of compounds, characterized in that it comprises substituted derivatives of oxadiazolinones and / or oxadiazolinthiones.
- the present invention derives in particular from the development of advantageous synthesis methods making it possible to produce, efficiently and industrially, substituted derivatives of oxadiazolinones 2
- the invention therefore resides in the use of such derivatives for the generation of combinatorial, diverse or focused libraries.
- the banks of the invention have an original composition, linked to the original structure of the monomers ("building blocks") used, and also particularly advantageous properties.
- oxadiazolinones have been described as carrying interesting biological properties, such as tuberculostatic, antibacterial (Sherman WR, J. Org. Chem. 26 (1961) 88), insecticidal (Rufenacht K. Helv. Chim. Acta) properties. 55 (1972) 1174), or also inhibitor of type B monoamine oxidases (Mazouz et al., Eur. J. Med. Chem. 25 (1990) 659), for example.
- the libraries of the invention therefore constitute a new rich source for the identification of compounds of interest.
- a library more particularly designates, within the meaning of the present invention, a composition comprising a collection of compounds of diverse structure. More particularly, the banks of the invention comprise at least 50 compounds of different structure, preferably at least 100, even more preferably, at least 500. Particular banks can comprise more than 1000, in particular more than 5000 products of various structure, for example up to 500,000, or more.
- the banks according to the invention can be primary banks or focused banks.
- a primary bank is a bank produced essentially at random, without any particular structural or conformational constraints. Primary banks are therefore often very diverse, and contain a large number of products.
- a focused bank is a "secondary" bank composed of products with a common characteristic (structural, conformational, etc.), or supposed to be such. This type of library is generally less diverse than primary banks, and has a lower number of compounds. These banks are more often used to optimize active products, in particular to search for analogues of active products. More particularly, the invention relates to a combinatorial library of compounds, characterized in that it comprises a plurality of compounds of general formula (I) below:
- R 1 is a hydrogen atom (H) or a first substituent; and A is chosen from the groups:
- R2 represents a hydrogen atom (H) or a second substituent
- R3 represents a hydrogen atom (H) or a third substituent
- X represents O or S.
- At least one of the substituents R1, R2 and R3 is different from H.
- the combinatorial libraries of the invention therefore comprise compounds having a common nucleus, derived from oxadiazolinones or oxadiazolinthiones, on which 1 or more substituents are introduced.
- the compounds Preferably, the compounds comprise 2 substituents, of different structure.
- the di-substituted compounds entering more preferably in the composition of the banks of the invention therefore carry a substituent R1 and a substituent R2 or, a substituent R1 and a substituent R3.
- the invention relates to a combinatorial library of compounds, characterized in that it comprises a plurality of compounds of general formula (II):
- R is a hydrogen atom or a first substituent
- R 2 is a hydrogen atom or a second substituent
- X is an oxygen or sulfur atom, at least one of the groups R1 and R2 being different from H.
- X is an oxygen atom (see for example the final compound described in Figures 2A, 3 and 4). Even more preferably, in the general formula (II), R1 and R2 are different from H. A preferred embodiment is that in which X is an oxygen atom and R1 and R2 are different from H.
- the invention relates to a combinatorial library of compounds, characterized in that it comprises a plurality (i) of compounds of general formula (III):
- R is a hydrogen atom or a first substituent and R 3 is a hydrogen atom or a second substituent, at least one of the groups R1 and R3 being different from H (see for example the final compound described in FIGS. 2C and 5B) and, optionally (ii) of compounds of general formula (II) as defined above, in which R., is a hydrogen atom or a first substituent; R 2 is a hydrogen atom or a second substituent, X is a sulfur atom and at least one of the groups R1 and R2 is different from H (see for example the final compound described in Figures 2B, 3, 4 and 5A). More preferably, in the general formulas (II) and (III), R1, R2 and R3 are different from H.
- the term "plurality” as used in the present application designates the fact that the banks of the invention comprise at least 2 compounds of different structure corresponding to the formula (I) above.
- a preferred bank within the meaning of the invention advantageously comprises more than 50 different products, and can include up to 500,000 products, or more.
- the libraries of the invention may comprise, in addition to the compounds of formula (I), other compounds of different structure, derived from combinatorial chemistry or from other synthetic routes.
- the invention relates to a combinatorial library of compounds as defined above, in which each compound is a substituted derivative of oxadiazolinone or of oxadiazolinthione, in particular in which each compound corresponds to the general formula (I) above.
- the invention relates to a combinatorial library of compounds as defined above, in which each compound corresponds to the general formula (II) above, in particular to the formula (II) in which X is an oxygen or sulfur atom, preferably oxygen and or R1 and R2 are substituent groups.
- the invention relates to a combinatorial library of compounds as defined above, in which each compound corresponds to the general formula (III) above, in particular in which R1 and R3 are groups substituents.
- the invention relates to a combinatorial library of compounds as defined above, in which each compound corresponds to the general formula (II) or (III) above, in particular in which R1, R2 and R3 are substituent groups and X is a sulfur atom. Substitutes
- substituted designates any atom, radical or chemical group capable of being covalently linked with the nucleus of the molecule of formula (I). It may especially be any neutral or charged chemical group, linear, branched or cyclic, hydrophobic or hydrophilic, acceptor or donor of electron (s) or proton (s), aromatic or not, halogenated or not, a protective group, of an arm which can be used for example to immobilize the compound (or the bank) on a support, etc.
- substituents used in the context of the present invention comprise one or more aromatic, heterocyclic, alkyl (saturated or unsaturated), acyl, alcohol, phenol, (thio) ether, acid, ester, nitrile, amino, ammonium, nitro groups. , aldehyde, ketone and / or halogen. More particularly, a substituent group of the invention can comprise from 1 to 30 carbon atoms, preferably from 1 to 20 carbon atoms.
- the substituent R1 can consist of any side chain of a hydrazide (ie, of formula R1-CO-NH-NH2).
- it may be a substituent comprising one or more aromatic, heterocyclic, alkyl (saturated or unsaturated), acyl, secondary or tertiary alcohol, phenol, (thio) ether, ester, nitrile, tertiary amine groups, ammonium, nitro, aldehyde, ketone and / or halogen, preferably containing from 1 to 30 carbon atoms, more preferably from 1 to 20 carbon atoms.
- the substituent R1 can come from any commercial hydrazide.
- Table 1 gives an illustrative list of hydrazides which can be used to provide the substituent group R1 in the constitution of the libraries of the invention. These hydrazides are commercial and can easily be obtained by a person skilled in the art. If necessary, they can also be synthesized according to conventional methods. Other commercial hydrazides are also described in the base of ACD ("Available Chemical Directory") data, usable in the context of the present invention. All these hydrazides are therefore capable of being used to produce compounds of the invention.
- any other hydrazide ie, non-commercial
- hydrazides carrying a desired side chain R1 can be synthesized from carboxylic acids according to conventional techniques of chemistry. There are approximately 18,000 commercial carboxylic acids, of which at least 10,000 can be used to synthesize hydrazides.
- R1 can therefore consist of any lateral grouping of a hydrazide, a carboxylic acid or any activated form of carboxylic acid (for example acyl halide or anhydride). The level of diversity of R1 is therefore high, since at least more than 10,000 different substituents can be used.
- substituents R1 which do not carry a primary or secondary amino function, primary alcohol or carboxylic acid.
- the substituent R2 may consist of any side chain of a halogen derivative, of a carboxylic acid or any activated form of carboxylic acid (for example acyl halide or anhydride) or of a primary amine or secondary, for example.
- it may be an alkyl, alkyl, linear or branched group, cyclic or not, aromatic or not, a group COR 4 , CH 2 -NR 5 R 6 or CH 2 -CH (OH ) -R 4 , in which R4, R5 and R6, independently of one another, are hydrogen atoms, alkyl or acyl groups, linear or branched, cyclic or not, saturated or not, aromatic or not, heterocyclic, alcohol, phenol, (thio) ether, acid, ester, nitrile, amino, ammonium, nitro, aldehyde, ketone and / or halogen.
- the substituent R2 preferably contains from 1 to 30 carbon atoms, more preferably from 1 to 20 carbon atoms.
- the substituent R3 can consist of any side chain of a halogen derivative, of an epoxide, of a carboxylic acid or any activated form of carboxylic acid (for example acyl halide or anhydride), for example.
- R4 independently of one another, are hydrogen atoms, alkyl or acyl groups, linear or branched, cyclic or not, saturated or not, aromatic or not , heterocyclics, alcohol, phenol, (thio) ether, acid, ester, nitrile, amino (tertiary), ammonium, nitro, aldehyde, ketone and / or halogen.
- the substituent R3 preferably contains from 1 to 30 carbon atoms, more preferably from 1 to 20 carbon atoms.
- the libraries of the invention can comprise a large quantity of individual compounds of different structure, and thus allow a better search for molecules of interest.
- the compounds and libraries of the invention are generally synthesized, by preparation, in a first step, of a monosubstituted oxadiazolinone or oxadiazolinthione carrying the substituent R1. Then, as the case may be, the substituent R2 or R3 can be introduced, by conventional chemistry methods, to generate an oxadiazolinone or a di-substituted oxadiazolinthione.
- the present invention also relates to a process for preparing a library of compounds as defined above, comprising a first synthesis step, preferably at high throughput, preferably automated, of a monosubstituted oxadiazolinone or oxadiazolinthione carrying the substituent R1 and, where appropriate, a second combinatorial step of substitution of the products monosubstituted by R2 or R3.
- the oxadiazolinone or the monosubstituted oxadiazolinthione (carrying the substituent R1) can be synthesized in different ways.
- the synthesis can be carried out in the context of the present invention, by thermal cyclization of carboxylic derivatives of acylhydrazines, or also by reaction of acylhydrazine and phosgene (Dornow et al., Ber. 82
- this synthesis step is carried out in the presence of dimethylformamide ("DMF").
- DMF dimethylformamide
- the applicants have demonstrated that when these syntheses are carried out in the presence of DMF, the reactions are quantitative, can be carried out at ambient temperature, and very high yields (which may exceed 95%) are obtained.
- the reaction represented in FIG. 1A carried out under the conditions of the prior art (in particular in the presence of THF only), gave rise to much lower yields, imposed temperature conditions which are difficult to use industrially. (Firoozi et al., J. Heterocycl. Chem. 32 (1995) 123; Boschelli et al., J. Med. Chem. 36 (1993) 1802) and did not allow the dissolution of the starting hydrazides to reach the desired concentrations for hydrazides in solution. Of 10
- the present invention therefore also describes an advantageous process for the synthesis of substituted oxadiazolinone (or oxadiazolinthion) compounds, comprising the reaction of a hydrazide and (thio) carbonyldiimidazole in the presence of DMF.
- the synthesis reaction is advantageously carried out in the presence of an excess of (thio) carbonyldiimidazole, under temperature conditions adaptable by a person skilled in the art, in particular close to ambient temperature. Even more preferably, the reaction is carried out in the presence of approximately 1 equivalent of hydrazide (in DMF) and of approximately 2 equivalents of (thio) carbonyldiimidazole (in a solvent such as THF or DMF).
- the ratio between the reactants as well as the temperature and the duration of the reaction can obviously be adapted by a person skilled in the art. In particular, it is possible to use from 1 to 5 equivalents of (thio) carbonyldiimidazole per equivalent of hydrazide. However, the best performance of the process is generally obtained under the conditions indicated above.
- this mode of synthesis constitutes the preferred embodiment of the invention, since it makes it possible to synthesize, on a large scale, under industrializable and economic conditions, large quantities of oxadiazolinone derivatives (or oxadiazolinthiones) diversified.
- this synthetic route can be automated, which constitutes another major advantage in the field of combinatorial chemistry. Examples of implementation of this synthesis method are given in the experimental part.
- particular libraries according to the present invention are those in which R1 is a substituent and R2 or R3 represent a hydrogen atom.
- the second step of the combinatorial synthesis process can be carried out immediately after the first, without first isolating the mono-substituted products obtained, or, on the contrary, after an intermediate step of separation (or isolation) of these.
- the process for the synthesis of oxadiazolinones or oxadiazolinthiones according to the invention using DMF is particularly advantageous since it makes it possible to make the separation or filtration step optional. Indeed, the reaction being essentially quantitative, it is possible to carry out the additional substitution directly in the same receptacle (plate well, in particular).
- the substituent R2 can be introduced by (i) an alkylation reaction (ii) an acylation reaction or (iii) a Mannich reaction, for example.
- the monosubstituted oxadiazolinone or oxadiazolinthione is incubated in the presence of a halogen derivative of formula R2-Y, in which Y is a halogen atom (Cl, Br or I), under conditions classics known to those skilled in the art (Milcent et al., J. of Heterocyclic Chemistry 28 (1991) 1511; Gogoi et al., Indian J. of Chemistry Sect B29 (1990) 1159).
- the corresponding reaction scheme is shown in FIG. 2A for the synthesis of di-substituted oxadiazolinones and in FIG. 2B for the synthesis of di-substituted oxadiazolones.
- the reaction product can be easily isolated from excess reagents, if necessary, by conventional chromatographic methods or by simple filtration, for example.
- the monosubstituted oxadiazolinone or oxadiazolinthione is incubated in the presence of an acid chloride of formula CICOR 4 , in which R4 is defined as above, under conventional conditions known to man of the profession (Gogoi et al., Indian J. of Chemistry Sect B29 (1990) 1159).
- CICOR 4 an acid chloride of formula CICOR 4 , in which R4 is defined as above
- the monosubstituted oxadiazolinone or oxadiazolinthione is incubated in the presence of a primary or secondary amine of formula HNR 5 R f5 , in which R5 and R6 are defined as above, and of formaldehyde CH 2 0
- the reaction is carried out under conventional conditions known to a person skilled in the art (Sherman WS, J. Organic Chemistry 26 (1961) 88; Vakula et al., Indian J. Chem. 7 (1969) 583; Goswami et al. , Indian J. Chem. 23B (1984) 796).
- the corresponding reaction scheme is shown in Figure 4.
- the reaction product can be easily isolated from excess reagents, if necessary, by conventional chromatographic methods or by simple filtration, for example.
- the substituent R2 can also be introduced on the monosubstituted oxadiazolinthione by opening of epoxides, according to the reaction represented in FIG. 5A (see for example Saski et al., J. Org. Chem. 47 (1982) 2757).
- the substituents R2 and R3 can be introduced on the monosubstituted oxadiazolinthione for example by (i) alkylation reaction, (ii) epoxide opening reaction, or (iii) acylation reaction.
- alkylation reaction the monosubstituted oxadiazolinthione is incubated in the presence of a halogen derivative of formula R3-Y, in which Y is a halogen atom (Cl, Br or I), under the conditions described above for the substituent R2.
- a halogen derivative of formula R3-Y in which Y is a halogen atom (Cl, Br or I)
- halogen derivatives halides
- Preferred halides for carrying out this step are in particular the compounds whose structure is shown in FIG. 6A, in which Ar represents a heterocyclic aromatic group or not, X represents a halogen atom, preferably Cl or Br, and R denotes a linear or branched hydrocarbon group, saturated or not, cyclic or not.
- the groups Ar and R have one or more other functions, for example alcohol, phenol, (thio) ether, acid, ester, nitrile, amino, ammonium, nitro, aldehyde, ketone and / or halogen.
- ⁇ -haloamides having linear or branched aliphatic groups, saturated or not, cyclic or not, preferably carrying one or more other functions, for example alcohol, phenol, (thio) ether, acid, ester, nitrile, amino, ammonium, nitro, aldehyde, ketone and / or halogen.
- the alkylation can be carried out by incubating the oxadiazolinthione in the presence of the alkylating agent (alkyl halide, benzyl halide, ⁇ -haloamide ( ⁇ -bromamide), ⁇ -haloketone, for example), for a period which may reach 3 p.m. for example (preferably from 20 'to 12 p.m.).
- the reaction can be carried out in the presence of a solvent, such as for example ethanol, acetone, etc. (see in particular Sen Gupta et al., Indian J. Chem. 16B (1978) 629; Sasaki et al., J. Org. Chem. 47 (1982) 2757).
- this reaction is carried out in a solvent such as DMF which 14
- the temperature and the reaction time can be adapted by the skilled person.
- the monosubstituted oxadiazolinthione is incubated in the presence of an epoxide carrying a side chain R4 in the presence of glacial acetic acid (see in particular Vakula et al, Indian J.
- this reaction is carried out in a solvent such as DMF which makes it possible to obtain high yields as well as the dissolution of a maximum of products reacted, the temperature and reaction time can be adapted by those skilled in the art.
- the Mannich reaction can also be carried out under the conditions described above (see also Goswami et al., Indian J. of Chemistry 23B (1984) 796).
- the reaction product i.e., di-substituted oxadiazolinthione
- the synthesis by combinatorial chemistry can be carried out in the form of a mixture and, in this case, the identification of the individual compounds, having proved to be active during a screening test, is then carried out subsequently.
- the combinatorial synthesis can also be carried out in parallel and, in this case, the syntheses are carried out simultaneously but in separate compartments (or wells).
- parallel synthesis can be carried out in microplates, in which the reagents are introduced sequentially, manually or by means of suitable robots.
- the synthesis can in particular be carried out using reagents immobilized on supports, in order to facilitate the optional intermediate separation step.
- the combinatorial synthesis is carried out from a first bank of selected reagents (hydrazides), which is distributed, for example by means of an automaton, in an appropriate support (preferably microplates having high numbers of wells, for example up to 1000 wells / plate).
- an appropriate support preferably microplates having high numbers of wells, for example up to 1000 wells / plate.
- each hydrazide is used at several points.
- the (thio) carbonyldiimidazole is introduced, in the chosen quantities, into the support, preferably by means of an automatic machine.
- the reaction is continued for the selected time (5 to 15 hours generally), at the chosen temperature (generally room temperature).
- the products obtained can then be harvested to constitute banks, or, more simply, the supports used directly as a bank in screening tests.
- the products obtained are optionally isolated (for example by suction and / or filtration), distributed again in supports, and subjected to a second substitution reaction, as indicated above, by example by contacting with halogen derivatives.
- Another advantage of the present invention is that it can make it possible to carry out the second substitution step directly on the products of the first, without resorting to intermediate separation / filtration.
- the resulting products can also be isolated or used directly as a support.
- a first synthesis was carried out by incubation of thiocarbonyidiimidazole in the presence of a first bank of 80 commercial hydrazides, distributed in the wells of a microplate. 84 identical plates are produced. In a second step, in each of these 84 plates are distributed a halogen derivative or a different epoxide, leading to the synthesis of 6720 different compounds.
- the present invention can be implemented in any type of industry, for research and / or optimization of products.
- it can be implemented in the pharmaceutical industry, for research and / or optimization of active products.
- the pharmaceutical industry increasingly uses combinatorial chemistry, that is to say banks of synthetic products, diversified or focused, which are screened by different batteries of tests (biological, physical, pharmacological, etc.). Thanks to the development of particularly effective methods, the present invention now makes it possible to widen the field of diversity of combinatorial banks, and thus to access new active molecules.
- the libraries of the invention can be of variable diversity, and thus serve in primary screening or for research of analogues, during optimization phases.
- Another object of the invention resides in a process for searching for active products, characterized in that it comprises a step during which a bank as defined above is tested.
- Another particular object of the invention resides in a method for optimizing active products, characterized in that it comprises a step during which a focused bank as defined above is tested.
- the banks can be tested in different ways, essentially with the aim of identifying leads exhibiting activity on a target, that is to say the ability to interact physically or functionally with a target. 17
- the present invention therefore also relates to the use of the banks described above for the identification or optimization of active compounds. It also relates to the active compounds themselves, obtained by the methods of the invention and / or by means of the banks of the invention.
- the invention relates in this regard to the individual individual compounds constituting the libraries described above exhibiting a given biological activity.
- the present invention also relates to any support comprising a library of compounds as defined above, in particular to a microplate comprising at least part of a library as defined above.
- Figure 1 Reaction diagram of the synthesis of oxadiazolinone (1A) or oxadiazolinthiones (1B) derivatives substituted from a hydrazide and (thio) carbonyldiimidazole.
- Figure 2 Reaction diagram of the substitution of oxadiazolinone derivatives by alkylation reaction (2A), oxadiazolinthiones by N-alkylation (2B) and oxadiazolinthiones by S-alkylation (2C).
- Figure 3 Reaction diagram of the substitution of oxadiazolinone / oxadiazolinthiones derivatives by acylation reaction.
- Figure 4 Reaction diagram of the substitution of oxadiazolinone / oxadiazolinthiones derivatives by Mannich reaction. 18
- Figure 5 Reaction diagram of the substitution, on the nitrogen atom, of the oxadiazolinthion derivatives by opening reaction of epoxides (5A) and of the substitution, on the sulfur atom, of the oxadiazolinthion derivatives by reaction of opening of epoxides (5B).
- Figure 6 Structure of halides for the alkylation of mono-substituted oxadiazolinthiones.
- This example describes the conditions for the synthesis of a bank of alkylated oxadiazolinthiones. This bank constitutes a source of products allowing the identification of active compounds.
- solutions N distinct solutions of hydrazides of different structures (80 hydrazides chosen in part from the hydrazides listed in Table 1) at 0.1 M in DMF, at neutrality.
- 5 ⁇ moles of thiocarbonyidiimidazole per well are distributed in “deep-wells” plates (with deep wells) (ie approximately 20 ⁇ l of solution S per well, the 5 precise volume of solution S is calculated prior to synthesis, by reactivity test of solution S).
- the distribution is carried out by means of an automatic machine. 84 96-well plates are thus prepared, within of which, only the first 80 wells are used (80 different products synthesized per plate).
- each plate 50 ⁇ l of solutions N are distributed, each solution N being distributed, on the same plate, in a different well (i.e., one hydrazide per well).
- a bank of mono-substituted oxadiazolinthiones is obtained.
- This first bank includes 80 compounds with different structures.
- quality control is carried out. For this, 5 ⁇ l are withdrawn from each well and evaporated under reduced pressure. The products obtained are dissolved with 300 ⁇ l of acetonitrile and injected (10 ⁇ l) on a chromatographic column and analyzed by LC / MS (liquid chromatography coupled to mass spectrometry).
- the oxadiazolinthiones obtained are subjected to an additional substitution.
- 10 ⁇ l of solutions A are added to each well (1 whole plate for each solution A).
- the plates are then placed in ovens and heated (target temperature 95 ° C), under nitrogen, for 6 hours. After this incubation, the heating and the flow of nitrogen are stopped, and the plates are cooled for 30 minutes.
- Each of the above steps is preferably carried out automatically.
- the plates are then removed from the oven, and 5 ⁇ l are taken from each well and distributed in a blank plate, for quality control (QC).
- the "synthesis" plates and the QC plates are then placed under reduced pressure for 4 hours to 24 hours, until the solvents have evaporated.
- the QC products are then dissolved with 300 ⁇ l of acetonitrile and injected on a LC / MS chromatographic column.
- the "synthesis" plates constitute a combinatorial library of substituted oxadiazolinthiones, usable for the search for active compounds, for example by screening and / or high throughput profiling.
- OXALIC ACID MONOHYDRAZIDE
- OXALIC ACID MONOHYDF AZIDE
- MONO- 4- MFCD00173093
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Abstract
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU43063/00A AU4306300A (en) | 1999-04-30 | 2000-04-28 | Oxa combinatorial library, production and use thereof |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9905553A FR2792936A1 (fr) | 1999-04-30 | 1999-04-30 | Banques combinatoires oxa,preparation et utisations. |
| FR99/05553 | 1999-04-30 |
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| Publication Number | Publication Date |
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| WO2000066573A2 true WO2000066573A2 (fr) | 2000-11-09 |
| WO2000066573A3 WO2000066573A3 (fr) | 2001-03-29 |
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| PCT/FR2000/001138 Ceased WO2000066573A2 (fr) | 1999-04-30 | 2000-04-28 | Banques combinatoires oxa, preparation et utilisations |
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| AU (1) | AU4306300A (fr) |
| FR (1) | FR2792936A1 (fr) |
| WO (1) | WO2000066573A2 (fr) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10199682B2 (en) | 2011-06-29 | 2019-02-05 | Space Charge, LLC | Rugged, gel-free, lithium-free, high energy density solid-state electrochemical energy storage devices |
| US10601074B2 (en) | 2011-06-29 | 2020-03-24 | Space Charge, LLC | Rugged, gel-free, lithium-free, high energy density solid-state electrochemical energy storage devices |
| US10658705B2 (en) | 2018-03-07 | 2020-05-19 | Space Charge, LLC | Thin-film solid-state energy storage devices |
| US11527774B2 (en) | 2011-06-29 | 2022-12-13 | Space Charge, LLC | Electrochemical energy storage devices |
| US11996517B2 (en) | 2011-06-29 | 2024-05-28 | Space Charge, LLC | Electrochemical energy storage devices |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU628240B2 (en) * | 1989-12-25 | 1992-09-10 | Sumitomo Chemical Company, Limited | An oxadiazolinone derivative and its production and use |
| US6420401B1 (en) * | 1997-08-22 | 2002-07-16 | Wichita State University | 1,2,5, thiadiazolidin-3-one 1,1-dioxide derivatives |
-
1999
- 1999-04-30 FR FR9905553A patent/FR2792936A1/fr active Pending
-
2000
- 2000-04-28 WO PCT/FR2000/001138 patent/WO2000066573A2/fr not_active Ceased
- 2000-04-28 AU AU43063/00A patent/AU4306300A/en not_active Abandoned
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10199682B2 (en) | 2011-06-29 | 2019-02-05 | Space Charge, LLC | Rugged, gel-free, lithium-free, high energy density solid-state electrochemical energy storage devices |
| US10601074B2 (en) | 2011-06-29 | 2020-03-24 | Space Charge, LLC | Rugged, gel-free, lithium-free, high energy density solid-state electrochemical energy storage devices |
| US11527774B2 (en) | 2011-06-29 | 2022-12-13 | Space Charge, LLC | Electrochemical energy storage devices |
| US11996517B2 (en) | 2011-06-29 | 2024-05-28 | Space Charge, LLC | Electrochemical energy storage devices |
| US10658705B2 (en) | 2018-03-07 | 2020-05-19 | Space Charge, LLC | Thin-film solid-state energy storage devices |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2000066573A3 (fr) | 2001-03-29 |
| FR2792936A1 (fr) | 2000-11-03 |
| AU4306300A (en) | 2000-11-17 |
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