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【结 构 式】

【药物名称】Cryptophycin 52, LY-355703

【化学名称】[3S-(3alpha,10beta,13E,16beta)]-10-(3-Chloro-4-methoxybenzyl)-16-[2(R*),3(R*)-epoxy-1(R)-methyl-3-phenylpropyl]-3-isobutyl-6,6-dimethyl-1,4-dioxa-8,11-diazacyclohexadec-13-ene-2,5,9,12-tetraone

【CA登记号】

【 分 子 式 】C36H45ClN2O8

【 分 子 量 】669.22165

【开发单位】Lilly (Originator), University of Hawaii (Originator), Wayne State University (Originator)

【药理作用】Antibiotics and Alkaloids, Antineoplastic Antibiotics, ONCOLYTIC DRUGS, Solid Tumors Therapy, Antimitotic Drugs, Microtubule-Stabilizing Agents

合成路线1

The intermediate epoxyamide (XVII) has been obtained as follows: The cyclization of 2-methylacetoacetic acid ethyl ester (I) by means of potassium tert-butoxide gives 4-hydroxy-3-methyl-5,6-dihydro-2H-pyran-2-one (I), which is enantiomerically reduced with Mortierella isabellina ATCC 42613 yielding (S,S)-4-hydroxy-3-methyltetrahydropyran-2-one (III). The silylation of (III) by means of TBDMS-Cl, imidazole and DMAP affords the silyl ether (IV), which is reduced with DIBAL to the corresponding lactol and condensed with benzyldiphenylphosphine oxide (V) to give (3S,4R)-3-(tert-butyldimethylsilyloxy)-4-methyl-6-phenyl-5-hexen-1-ol (VI). The oxidation of (VI) with oxalyl chloride in dichloromethane/DMSO yields the corresponding aldehyde (VII), which is submitted to a Wittig condensation with trimethyl phosphonoacetate (VIII) by means of 1,1,3,3-tetramethylguanidine (TMG) to afford the octadienoic ester (IX). The hydrolysis of (IX) with KOH in dioxane gives the corresponding acid (X), which is esterified with N-hydroxysuccinimide (XI) and EDC to give the activated ester (XII). The epoxidation of (XII) with oxone or MCPBA, followed by HPLC chromatography separation of the resulting mixture of epoxides, gives the (2E,5S,6S,7R,8R)-5-(tert-butyldimethylsilyloxy)-7,8-epoxy-6-methyl-8-phenyl-2-octenoic acid N-succinimidinyl ester (XIII). The condensation of activated ester (XIII) with amino acid (XIV) yields the corresponding amide (XV), which is desilylated with TBAF in DMF to afford the hydroxyacid (XVI). Finally, compound (XVI) is treated with DMSO and NaHCO3 and tert-butyl bromide to provide the desired intermediate the epoxyamide (XVII).

1 Zmijewski, M.J.J.; Zhang, T.Y.; Aikins, J.A.; Briggs, B.S. (Eli Lilly and Company; University of Hawaii; Wayne State University); Stereoselective process for producing antineoplastic agents. WO 0023429 .
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(I) 10362 ethyl 2-methyl-3-oxobutanoate; ethyl 2-methylacetoacetate 609-14-3 C7H12O3 详情 详情
(II) 36494 4-hydroxy-3-methyl-5,6-dihydro-2H-pyran-2-one C6H8O3 详情 详情
(III) 36495 (3S,4S)-4-hydroxy-3-methyltetrahydro-2H-pyran-2-one C6H10O3 详情 详情
(IV) 36496 (3S,4S)-4-[[tert-butyl(dimethyl)silyl]oxy]-3-methyltetrahydro-2H-pyran-2-one C12H24O3Si 详情 详情
(V) 36497 benzyl(diphenyl)phosphine oxide; benzyl(oxo)diphenylphosphorane 2959-74-2 C19H17OP 详情 详情
(VI) 36498 (3S,4R,5E)-3-[[tert-butyl(dimethyl)silyl]oxy]-4-methyl-6-phenyl-5-hexen-1-ol C19H32O2Si 详情 详情
(VII) 36499 (3S,4R,5E)-3-[[tert-butyl(dimethyl)silyl]oxy]-4-methyl-6-phenyl-5-hexenal C19H30O2Si 详情 详情
(VIII) 13272 Methyl 2-(dimethoxyphosphoryl)acetate; Trimethyl phosphoroacetate 5927-18-4 C5H11O5P 详情 详情
(IX) 34373 methyl (2E,5S,6R,7E)-5-[[tert-butyl(dimethyl)silyl]oxy]-6-methyl-8-phenyl-2,7-octadienoate C22H34O3Si 详情 详情
(X) 34374 (2E,5S,6R,7E)-5-[[tert-butyl(dimethyl)silyl]oxy]-6-methyl-8-phenyl-2,7-octadienoic acid C21H32O3Si 详情 详情
(XI) 10264 1-Hydroxydihydro-1H-pyrrole-2,5-dione; N-Hydroxysuccinimide; 1-Hydroxy-2,5-pyrrolidinedione 6066-82-6 C4H5NO3 详情 详情
(XII) 36500 1-[((2E,5S,6R,7E)-5-[[tert-butyl(dimethyl)silyl]oxy]-6-methyl-8-phenyl-2,7-octadienoyl)oxy]-2,5-pyrrolidinedione C25H35NO5Si 详情 详情
(XIII) 36501 1-([(E,5S,6R)-5-[[tert-butyl(dimethyl)silyl]oxy]-6-[(2R,3S)-3-phenyloxiranyl]-2-heptenoyl]oxy)-2,5-pyrrolidinedione C25H35NO6Si 详情 详情
(XIV) 36502 (2R)-2-amino-3-(3-chloro-4-methoxyphenyl)propionic acid C10H12ClNO3 详情 详情
(XV) 36503 (2R)-2-([(E,5S,6R)-5-[[tert-butyl(dimethyl)silyl]oxy]-6-[(2R,3S)-3-phenyloxiranyl]-2-heptenoyl]amino)-3-(3-chloro-4-methoxyphenyl)propionic acid C31H42ClNO6Si 详情 详情
(XVI) 36504 N,N,N-tributyl-1-butanaminium (2R)-3-(3-chloro-4-methoxyphenyl)-2-([(E,5S,6S)-5-hydroxy-6-[(2R,3S)-3-phenyloxiranyl]-2-heptenoyl]amino)propanoate C41H63ClN2O6 详情 详情
(XVII) 36505 (methylsulfanyl)methyl (2R)-3-(3-chloro-4-methoxyphenyl)-2-([(E,5S,6S)-5-hydroxy-6-[(2R,3S)-3-phenyloxiranyl]-2-heptenoyl]amino)propanoate C27H32ClNO6S 详情 详情

合成路线2

The deprotection of the carbamate (XVIII) by means of TFA gives the free aminoester (XIX), which is reprotected with Fmoc-Cl and NaHCO3 yielding the acid (XX). The esterification of the hydroxy group of he intermediate (XVII) with the acid group of (XX) by means of EDC affords the expected ester (XXI). The oxidation of the methylsulfanyl group of (XXI) with oxone affords the corresponding methylsulfonylmethyl ester (XXII), which is finally cyclized by means of piperidine in DMF.

1 Zmijewski, M.J.J.; Zhang, T.Y.; Aikins, J.A.; Briggs, B.S. (Eli Lilly and Company; University of Hawaii; Wayne State University); Stereoselective process for producing antineoplastic agents. WO 0023429 .
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(XVII) 36505 (methylsulfanyl)methyl (2R)-3-(3-chloro-4-methoxyphenyl)-2-([(E,5S,6S)-5-hydroxy-6-[(2R,3S)-3-phenyloxiranyl]-2-heptenoyl]amino)propanoate C27H32ClNO6S 详情 详情
(XVIII) 18904 (2S)-2-([3-[(tert-butoxycarbonyl)amino]-2,2-dimethylpropanoyl]oxy)-4-methylpentanoic acid C16H29NO6 详情 详情
(XIX) 36506 (2S)-2-[(3-amino-2,2-dimethylpropanoyl)oxy]-4-methylpentanoic acid C11H21NO4 详情 详情
(XX) 36507 (2S)-2-[(3-[[(9H-fluoren-9-ylmethoxy)carbonyl]amino]-2,2-dimethylpropanoyl)oxy]-4-methylpentanoic acid C26H31NO6 详情 详情
(XXI) 36508 (methylsulfanyl)methyl (9S,12S,14E,18R)-18-(3-chloro-4-methoxybenzyl)-1-(9H-fluoren-9-yl)-9-isobutyl-6,6-dimethyl-3,7,10,16-tetraoxo-12-[(1R)-1-[(2R,3S)-3-phenyloxiranyl]ethyl]-2,8,11-trioxa-4,17-diaza-14-nonadecen-19-oate C53H61ClN2O11S 详情 详情
(XXII) 36509 (methylsulfonyl)methyl (9S,12S,14E,18R)-18-(3-chloro-4-methoxybenzyl)-1-(9H-fluoren-9-yl)-9-isobutyl-6,6-dimethyl-3,7,10,16-tetraoxo-12-[(1R)-1-[(2R,3S)-3-phenyloxiranyl]ethyl]-2,8,11-trioxa-4,17-diaza-14-nonadecen-19-oate C53H61ClN2O13S 详情 详情

合成路线3

Synthesis of intermediate 2(S)-[3-(tert-butoxycarbonylamino)-2,2-dimethylpropionyloxy]-4-methylpentanoic acid (VIII): The reaction of 3-amino-2,2-dimethyl-1-propanol (I) with Boc2 and Et3N in methanol gives the carbamate (II), which is oxidized with NaIO4 in CCl4/acetonitrile/water yielding 3-(tert-butoxycarbonylamino)-2,2-dimethylpropionic acid (III). The esterification of 2(S)-hydroxy-4-methylpentanoic acid (IV) with allyl bromide (V), NaHCO3 and tetrabutylammonium chloride in dichloromethane/water affords the corresponding allyl ester (VI). The esterification of hydroxyester (VI) with amino acid (II) by means of DCC and DMAP in dichloromethane provides the corresponding diester (VII), which is finally treated with Pd(PPh3)4 and morpholine in THF to furnish the intermediate 2(S)-[3-(tert-butoxycarbonylamino)-2,2-dimethylpropionyloxy]-4-methylpentanoic acid (VIII).

1 WO 9640184 .
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(I) 42783 3-amino-2,2-dimethyl-1-propanol 26734-09-8 C5H13NO 详情 详情
(II) 42784 tert-butyl 3-hydroxy-2,2-dimethylpropylcarbamate C10H21NO3 详情 详情
(III) 18901 N-(tert-butoxycarbonyl)-2,2-dimethyl-beta-alanine C10H19NO4 详情 详情
(IV) 42785 (2S)-2-hydroxy-4-methylpentanoic acid 13748-90-8 C6H12O3 详情 详情
(V) 11720 4-Bromo-1-butene 5162-44-7 C4H7Br 详情 详情
(VI) 18902 allyl (2S)-2-hydroxy-4-methylpentanoate C9H16O3 详情 详情
(VII) 18903 allyl (2S)-2-([3-[(tert-butoxycarbonyl)amino]-2,2-dimethylpropanoyl]oxy)-4-methylpentanoate C19H33NO6 详情 详情
(VIII) 18904 (2S)-2-([3-[(tert-butoxycarbonyl)amino]-2,2-dimethylpropanoyl]oxy)-4-methylpentanoic acid C16H29NO6 详情 详情

合成路线4

Synthesis of 261501: The optical resolution of trans-3-penten-2-ol (IX) with porcine pancreatic lipase (PPL) and trifluoroethyl laurate in ethyl ether gives the (S)-trans-isomer (X), which is condensed with propargyl alcohol (XI) by means of tetrabutylammonium hyrogensulfate and NaOH in water, yielding the corresponding ether (XII). Rearrangement of (XII) by means of BuLi in THF affords (3R,4R,5E)-4-methylhept-5-en-1-yn-3-ol (XIII), which is silylated with Tbdms-Cl and imidazole to afford the corresponding silyl ether (XIV). The reaction of (XIV) with BH3 in THF provides the aldehyde (XV), which is condensed with phosphonate (XVI) by means of tetramethylguanidine (TMG) in THF to give the nonadienoic ester (XVII). Ozonolysis of (XVII), followed by reaction with Zn/HOAc yields the aldehyde (XVIII), which is condensed with benzyltriphenylphosphonium chloride (XIX) by means of BuLi in THF to afford the 8-phenyloctadienoic ester (XX). The hydrolysis of (XX) with LiOH in acetone/water furnishes the corresponding free acid (XXI), which is condensed with 3-chloro-4-methoxy-L-phenylalanine trichloroethyl ester (XXII) by means of pentafluorodiphenylphosphinate (FDPP) and DIEA in DMF to give the corresponding amide (XXIII). The desilylation of (XXIII) with aqueous HF in acetonitrile affords the hydroxyamide (XXIV), which is esterified with the intermediate 2(S)-[3-(tert-butoxycarbonylamino)-2,2-dimethylpropionyloxy]-4-methylpentanoic acid (VIII) by means of DCC and DMAP in dichloromethane gives the corresponding ester (XXV).

1 WO 9640184 .
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(VIII) 18904 (2S)-2-([3-[(tert-butoxycarbonyl)amino]-2,2-dimethylpropanoyl]oxy)-4-methylpentanoic acid C16H29NO6 详情 详情
(IX) 42786 (E)-3-penten-2-ol C5H10O 详情 详情
(X) 42787 (2S,3E)-3-penten-2-ol C5H10O 详情 详情
(XI) 16664 Propargyl Alcohol; 2-propyn-1-ol 107-19-7 C3H4O 详情 详情
(XII) 42788 (1S,2E)-1-methyl-2-butenyl 2-propynyl ether; (E,4S)-4-(2-propynyloxy)-2-pentene C8H12O 详情 详情
(XIII) 42789 (3R,4R,5E)-4-methyl-5-hepten-1-yn-3-ol C8H12O 详情 详情
(XIV) 42790 tert-butyl(dimethyl)silyl (1R,2R,3E)-1-ethynyl-2-methyl-3-pentenyl ether; tert-butyl[[(1R,2R,3E)-1-ethynyl-2-methyl-3-pentenyl]oxy]dimethylsilane C14H26OSi 详情 详情
(XV) 42791 (3S,4R,5E)-3-[[tert-butyl(dimethyl)silyl]oxy]-4-methyl-5-heptenal C14H28O2Si 详情 详情
(XVI) 27698 methyl 2-(diethoxyphosphoryl)acetate 1067-74-9 C7H15O5P 详情 详情
(XVII) 42792 methyl (2E,5S,6R,7E)-5-[[tert-butyl(dimethyl)silyl]oxy]-6-methyl-2,7-nonadienoate C17H32O3Si 详情 详情
(XVIII) 42793 methyl (E,5S,6S)-5-[[tert-butyl(dimethyl)silyl]oxy]-6-methyl-7-oxo-2-heptenoate C15H28O4Si 详情 详情
(XIX) 42794 Benzyl(triphenyl)phosphonium chloride 1449-46-3 C25H22ClP 详情 详情
(XX) 34373 methyl (2E,5S,6R,7E)-5-[[tert-butyl(dimethyl)silyl]oxy]-6-methyl-8-phenyl-2,7-octadienoate C22H34O3Si 详情 详情
(XXI) 34374 (2E,5S,6R,7E)-5-[[tert-butyl(dimethyl)silyl]oxy]-6-methyl-8-phenyl-2,7-octadienoic acid C21H32O3Si 详情 详情
(XXII) 42795 2,2,2-trichloroethyl (2R)-2-amino-3-(3-chloro-4-methoxyphenyl)propanoate C12H13Cl4NO3 详情 详情
(XXIII) 42796 2,2,2-trichloroethyl (2R)-2-[((2E,5S,6R,7E)-5-[[tert-butyl(dimethyl)silyl]oxy]-6-methyl-8-phenyl-2,7-octadienoyl)amino]-3-(3-chloro-4-methoxyphenyl)propanoate C33H43Cl4NO5Si 详情 详情
(XXIV) 18905 2,2,2-trichloroethyl (2R)-3-(3-chloro-4-methoxyphenyl)-2-[[(2E,5S,6R,7E)-5-hydroxy-6-methyl-8-phenyl-2,7-octadienoyl]amino]propanoate C27H29Cl4NO5 详情 详情
(XXV) 18906 2,2,2-trichloroethyl (10S,13S,15E,19R)-19-(3-chloro-4-methoxybenzyl)-10-isobutyl-2,2,7,7-tetramethyl-13-[(1R,2E)-1-methyl-3-phenyl-2-propenyl]-4,8,11,17-tetraoxo-3,9,12-trioxa-5,18-diaza-15-icosen-20-oate C43H56Cl4N2O10 详情 详情

合成路线5

Elimination of the trichloroethyl group of (XXV) with Zn in acetic acid gives the carboxyl free intermediate (XXVI), which is treated with TFA to yield intermediate (XXVII) with free amino and carboxy groups. The cyclization of (XXVII) with pentafluorodiphenylphosphinate (FDPP) and DIEA in DMF affords the corresponding cyclic amide (XXVIII), which is finally epoxidated with MCPBA in dichloromethane, furnishing a diastereomeric mixture of epoxides that are separated by reverse phase chromatography.

1 WO 9640184 .
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(XXV) 18906 2,2,2-trichloroethyl (10S,13S,15E,19R)-19-(3-chloro-4-methoxybenzyl)-10-isobutyl-2,2,7,7-tetramethyl-13-[(1R,2E)-1-methyl-3-phenyl-2-propenyl]-4,8,11,17-tetraoxo-3,9,12-trioxa-5,18-diaza-15-icosen-20-oate C43H56Cl4N2O10 详情 详情
(XXVI) 18907 (10S,13S,15E,19R)-19-(3-chloro-4-methoxybenzyl)-10-isobutyl-2,2,7,7-tetramethyl-13-[(1R,2E)-1-methyl-3-phenyl-2-propenyl]-4,8,11,17-tetraoxo-3,9,12-trioxa-5,18-diaza-15-icosen-20-oic acid C41H55ClN2O10 详情 详情
(XXVII) 18908 (2R)-2-[[(2E,5S,6R,7E)-5-([(2S)-2-[(3-amino-2,2-dimethylpropanoyl)oxy]-4-methylpentanoyl]oxy)-6-methyl-8-phenyl-2,7-octadienoyl]amino]-3-(3-chloro-4-methoxyphenyl)propionic acid C36H47ClN2O8 详情 详情
(XXVIII) 18909 (3S,10R,16S)-10-(3-chloro-4-methoxybenzyl)-3-isobutyl-6,6-dimethyl-16-[(1R,2E)-1-methyl-3-phenyl-2-propenyl]-1,4-dioxa-8,11-diaza-13-cyclohexadecene-2,5,9,12-tetrone C36H45ClN2O7 详情 详情

合成路线6

The previously reported open-chain styrene intermediate (I) is submitted to a Sharpless asymmetric epoxidation to give, after chromatographic purification, the diol (II), which is cyclized by means of TFA and 2-hydroxypyridine yielding the macrocycle (III). The reaction of (III) with trimethyl orthoformate and pyridinium p-toluenesulfonate (PPTS) in dichloromethane affords the cyclic orthoester (IV), which is treated with trimethylsilyl iodide to provide the iodo formate (V). Finally, this compound is converted into the target macrocyclic epoxide by treatment with K2CO3 in methanol/THF. Alternatively, the intermediate cyclic orthoester (IV) can be treated with acetyl bromide to give the bromo formate (VI), which is converted into the target epoxide by reaction with K2CO3 as before.

1 WO 9640184 .
2 Liang, J.; et al.; Synthesis of cryptophycin 52 using the Sharpless asymetric dihydroxylation: Diol to epoxide transformation optimized for a base-sensitive substrate. J Org Chem 2000, 65, 10, 3143.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(I) 18906 2,2,2-trichloroethyl (10S,13S,15E,19R)-19-(3-chloro-4-methoxybenzyl)-10-isobutyl-2,2,7,7-tetramethyl-13-[(1R,2E)-1-methyl-3-phenyl-2-propenyl]-4,8,11,17-tetraoxo-3,9,12-trioxa-5,18-diaza-15-icosen-20-oate C43H56Cl4N2O10 详情 详情
(II) 42797 2,2,2-trichloroethyl (10S,13S,15E,19R)-19-(3-chloro-4-methoxybenzyl)-13-[(1R,2R,3R)-2,3-dihydroxy-1-methyl-3-phenylpropyl]-10-isobutyl-2,2,7,7-tetramethyl-4,8,11,17-tetraoxo-3,9,12-trioxa-5,18-diaza-15-icosen-20-oate C43H58Cl4N2O12 详情 详情
(III) 42798 (3S,10R,16S)-10-(3-chloro-4-methoxybenzyl)-16-[(1R,2R,3R)-2,3-dihydroxy-1-methyl-3-phenylpropyl]-3-isobutyl-6,6-dimethyl-1,4-dioxa-8,11-diaza-13-cyclohexadecene-2,5,9,12-tetrone C36H47ClN2O9 详情 详情
(IV) 42799 (3S,10R,16S)-10-(3-chloro-4-methoxybenzyl)-3-isobutyl-16-[(1R)-1-[(4R,5R)-2-methoxy-5-phenyl-1,3-dioxolan-4-yl]ethyl]-6,6-dimethyl-1,4-dioxa-8,11-diaza-13-cyclohexadecene-2,5,9,12-tetrone C38H49ClN2O10 详情 详情
(V) 42800 (1R,2R)-2-[(3S,10R,16S)-10-(3-chloro-4-methoxybenzyl)-3-isobutyl-6,6-dimethyl-2,5,9,12-tetraoxo-1,4-dioxa-8,11-diaza-13-cyclohexadecen-16-yl]-1-[(S)-iodo(phenyl)methyl]propyl formate C37H46ClIN2O9 详情 详情
(VI) 42801 (1R,2R)-1-[(S)-bromo(phenyl)methyl]-2-[(3S,10R,16S)-10-(3-chloro-4-methoxybenzyl)-3-isobutyl-6,6-dimethyl-2,5,9,12-tetraoxo-1,4-dioxa-8,11-diaza-13-cyclohexadecen-16-yl]propyl formate C37H46BrClN2O9 详情 详情

合成路线7

The epoxidation of the octadienamide intermediate (I) (scheme no. 26150102b, intermediate (XXIV)) by means of ketone (II), Oxone, Bu4N HSO4 and Na2-EDTA in acetonitrile/water gives the epoxide (III), which is condensed with the pentanoic acid (IV) by means of DCC and DMAP in dichloromethane to yield the ester (V). Finally, this compound is deprotected and submitted to macrocyclization by means of piperidine in DMF to afford the target Cryptophycin 52.

1 Hoard, D.W.; et al.; Synthesis of cryptophycin 52 using the shi epoxidation. Org Lett 2002, 4, 10, 1813.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(I) 18905 2,2,2-trichloroethyl (2R)-3-(3-chloro-4-methoxyphenyl)-2-[[(2E,5S,6R,7E)-5-hydroxy-6-methyl-8-phenyl-2,7-octadienoyl]amino]propanoate C27H29Cl4NO5 详情 详情
(II) 58313   C12H18O6 详情 详情
(III) 58514 N-(5-chloro-2-methoxyphenyl)-3,5-bis(trifluoromethyl)benzamide C16H10ClF6NO2 详情 详情
(IV) 36504 N,N,N-tributyl-1-butanaminium (2R)-3-(3-chloro-4-methoxyphenyl)-2-([(E,5S,6S)-5-hydroxy-6-[(2R,3S)-3-phenyloxiranyl]-2-heptenoyl]amino)propanoate C41H63ClN2O6 详情 详情
(V) 58515 N-(5-chloro-2-methoxyphenyl)-3,5-bis(trifluoromethyl)benzenecarbohydrazonamide C16H12ClF6N3O 详情 详情
Extended Information