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【结 构 式】

【分子编号】52925

【品名】(3aR,4R,5R,6aS)-4-{(E)-4-[2-iodo-5-(trifluoromethyl)phenoxy]-3-oxo-1-butenyl}-2-oxohexahydro-2H-cyclopenta[b]furan-5-yl benzoate

【CA登记号】

【 分 子 式 】C25H20F3IO6

【 分 子 量 】600.3298796

【元素组成】C 50.02% H 3.36% F 9.49% I 21.14% O 15.99%

与该中间体有关的原料药合成路线共 3 条

合成路线1

该中间体在本合成路线中的序号:(VII)

The alkylation of 2-iodo-5-(trifluoromethyl)phenol (I) with ethyl 2-bromoacetate (II) and K2CO3 in acetone gives the phenyl ether (III), which is condensed with the phosphonate (IV) by means of BuLi in THF to yield the ketophosphonate (V). The condensation of the Corey aldehyde (VI) with phosphonate (V) by means of ClLi and TEA in THF affords the ketonic intermediate (VII), which is reduced with (-)-chlorodiisopinocampheylborane [(-)-DIPCl] in THF to produce C-15 hydroxy epimer predominantly with the desired stereochemistry (VIII).The hydrolysis of the benzoate group of (VIII) with K2CO3 in methanol gives the dihydroxylactone (IX), which is protected with DHP and Ts-OH in dichloromethane to yield the bis-tetrahydropyranyl ether (X). The lactone group of (X) is reduced with DIBAL in THF to yield the lactol (XI), which is submitted to a Wittig condensation with 4-carboxybutyltriphenylphosphonium bromide (XII) by means of tBu-OK in THF to afford the carboxylic acid (XIII). The esterification of (XIII) with isopropyl iodide and DBU in acetone affords the isopropyl ester (XIV), which is deprotected (elimination of the THP protecting groups) with HCl in methanol/water and purified by chromatography (elimination of the unwanted C15-epimer) to afford the precursor (XV). Finally the iodine atom of (XV) is eliminated by hydrogenation with hydrogen over Pd/C in ethyl acetate.

1 Selliah, R.; et al.; Synthesis of [phenyl-2-H-3]-travoprost: Isopropyl ester prodrug of a selective prostaglandin FP receptor agonist. J Label Compd Radiopharm 2001, 44, 3, 173.
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) 52922 2-iodo-5-(trifluoromethyl)phenol C7H4F3IO 详情 详情
(II) 16640 Ethyl 2-bromoacetate; Ethyl bromoacetate 105-36-2 C4H7BrO2 详情 详情
(III) 52923 ethyl 2-[2-iodo-5-(trifluoromethyl)phenoxy]acetate n/a C11H10F3IO3 详情 详情
(IV) 13607 dimethyl methylphosphonate 756-79-6 C3H9O3P 详情 详情
(V) 52924 dimethyl 3-[2-iodo-5-(trifluoromethyl)phenoxy]-2-oxopropylphosphonate C12H13F3IO5P 详情 详情
(VI) 33585 (8R,9S,10R,13S,14S)-13-ethyl-11-methylene-3-(1-pyrrolidinyl)-1,2,7,8,9,10,11,12,13,14,15,16-dodecahydro-17H-cyclopenta[a]phenanthren-17-one C24H33NO 详情 详情
(VII) 52925 (3aR,4R,5R,6aS)-4-{(E)-4-[2-iodo-5-(trifluoromethyl)phenoxy]-3-oxo-1-butenyl}-2-oxohexahydro-2H-cyclopenta[b]furan-5-yl benzoate C25H20F3IO6 详情 详情
(VIII) 52926 (3aR,4R,5R,6aS)-4-{(E)-3-hydroxy-4-[2-iodo-5-(trifluoromethyl)phenoxy]-1-butenyl}-2-oxohexahydro-2H-cyclopenta[b]furan-5-yl benzoate C25H22F3IO6 详情 详情
(IX) 52927 (3aR,4R,5R,6aS)-5-hydroxy-4-{(E)-3-hydroxy-4-[2-iodo-5-(trifluoromethyl)phenoxy]-1-butenyl}hexahydro-2H-cyclopenta[b]furan-2-one C18H18F3IO5 详情 详情
(X) 52928 (3aR,4R,5R,6aS)-4-[(E)-4-[2-iodo-5-(trifluoromethyl)phenoxy]-3-(tetrahydro-2H-pyran-2-yloxy)-1-butenyl]-5-(tetrahydro-2H-pyran-2-yloxy)hexahydro-2H-cyclopenta[b]furan-2-one C28H34F3IO7 详情 详情
(XI) 52929 (3aR,4R,5R,6aS)-4-[(E)-4-[2-iodo-5-(trifluoromethyl)phenoxy]-3-(tetrahydro-2H-pyran-2-yloxy)-1-butenyl]-5-(tetrahydro-2H-pyran-2-yloxy)hexahydro-2H-cyclopenta[b]furan-2-ol C28H36F3IO7 详情 详情
(XII) 13616 (4-Carboxybutyl)triphenylphosphonium bromide 17814-85-6 C23H24BrO2P 详情 详情
(XIII) 52930 (Z)-7-[(1R,2R,3R,5S)-5-hydroxy-2-[(E)-4-[2-iodo-5-(trifluoromethyl)phenoxy]-3-(tetrahydro-2H-pyran-2-yloxy)-1-butenyl]-3-(tetrahydro-2H-pyran-2-yloxy)cyclopentyl]-5-heptenoic acid C33H44F3IO8 详情 详情
(XIV) 52931 isopropyl (Z)-7-[(1R,2R,3R,5S)-5-hydroxy-2-[(E)-4-[2-iodo-5-(trifluoromethyl)phenoxy]-3-(tetrahydro-2H-pyran-2-yloxy)-1-butenyl]-3-(tetrahydro-2H-pyran-2-yloxy)cyclopentyl]-5-heptenoate C36H50F3IO8 详情 详情
(XV) 52932 isopropyl (Z)-7-((1R,2R,3R,5S)-3,5-dihydroxy-2-{(E,3R)-3-hydroxy-4-[2-iodo-5-(trifluoromethyl)phenoxy]-1-butenyl}cyclopentyl)-5-heptenoate C26H34F3IO6 详情 详情

合成路线2

该中间体在本合成路线中的序号:(VII)

The alkylation of 2-iodo-5-(trifluoromethyl)phenol (I) with ethyl 2-bromoacetate (II) and K2CO3 in acetone gives the phenyl ether (III), which is condensed with the phosphonate (IV) by means of BuLi in THF to yield the ketophosphonate (V). The condensation of the Corey aldehyde (VI) with phosphonate (V) by means of ClLi and TEA in THF affords the ketonic intermediate (VII), which is reduced with (-)-chlorodiisopinocampheylborane [(-)-DIPCl] in THF to produce C-15 hydroxy epimer (VIII) predominantly with the desired stereochemistry. The hydrolysis of the benzoate group of (VIII) with K2CO3 in methanol gives the dihydroxylactone (IX), which is protected with DHP and Ts-OH in dichloromethane to yield the bis-tetrahydropyranyl ether (X). The lactone group of (X) is reduced with DIBAL in THF to yield the lactol (XI), which is submitted to a Wittig condensation with 4-carboxybutyltriphenylphosphonium bromide (XII) by means of tBu-OK in THF to afford the carboxylic acid (XIII). The esterification of (XIII) with isopropyl iodide and DBU in acetone affords the isopropyl ester (XIV), which is deprotected (elimination of the THP protecting groups) with HCl in methanol/water and purified by chromatography (elimination of the unwanted C15-epimer) to afford the precursor (XV). Finally the iodine atom of (XV) is substituted with tritium by hydrogenation with tritium gas over Pd/C in ethyl acetate.

1 Selliah, R.; et al.; Synthesis of [phenyl-2-H-3]-travoprost: Isopropyl ester prodrug of a selective prostaglandin FP receptor agonist. J Label Compd Radiopharm 2001, 44, 3, 173.
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) 52922 2-iodo-5-(trifluoromethyl)phenol C7H4F3IO 详情 详情
(II) 16640 Ethyl 2-bromoacetate; Ethyl bromoacetate 105-36-2 C4H7BrO2 详情 详情
(III) 52923 ethyl 2-[2-iodo-5-(trifluoromethyl)phenoxy]acetate n/a C11H10F3IO3 详情 详情
(IV) 13607 dimethyl methylphosphonate 756-79-6 C3H9O3P 详情 详情
(V) 52924 dimethyl 3-[2-iodo-5-(trifluoromethyl)phenoxy]-2-oxopropylphosphonate C12H13F3IO5P 详情 详情
(VI) 33585 (8R,9S,10R,13S,14S)-13-ethyl-11-methylene-3-(1-pyrrolidinyl)-1,2,7,8,9,10,11,12,13,14,15,16-dodecahydro-17H-cyclopenta[a]phenanthren-17-one C24H33NO 详情 详情
(VII) 52925 (3aR,4R,5R,6aS)-4-{(E)-4-[2-iodo-5-(trifluoromethyl)phenoxy]-3-oxo-1-butenyl}-2-oxohexahydro-2H-cyclopenta[b]furan-5-yl benzoate C25H20F3IO6 详情 详情
(VIII) 52926 (3aR,4R,5R,6aS)-4-{(E)-3-hydroxy-4-[2-iodo-5-(trifluoromethyl)phenoxy]-1-butenyl}-2-oxohexahydro-2H-cyclopenta[b]furan-5-yl benzoate C25H22F3IO6 详情 详情
(IX) 52927 (3aR,4R,5R,6aS)-5-hydroxy-4-{(E)-3-hydroxy-4-[2-iodo-5-(trifluoromethyl)phenoxy]-1-butenyl}hexahydro-2H-cyclopenta[b]furan-2-one C18H18F3IO5 详情 详情
(X) 52928 (3aR,4R,5R,6aS)-4-[(E)-4-[2-iodo-5-(trifluoromethyl)phenoxy]-3-(tetrahydro-2H-pyran-2-yloxy)-1-butenyl]-5-(tetrahydro-2H-pyran-2-yloxy)hexahydro-2H-cyclopenta[b]furan-2-one C28H34F3IO7 详情 详情
(XI) 52929 (3aR,4R,5R,6aS)-4-[(E)-4-[2-iodo-5-(trifluoromethyl)phenoxy]-3-(tetrahydro-2H-pyran-2-yloxy)-1-butenyl]-5-(tetrahydro-2H-pyran-2-yloxy)hexahydro-2H-cyclopenta[b]furan-2-ol C28H36F3IO7 详情 详情
(XII) 13616 (4-Carboxybutyl)triphenylphosphonium bromide 17814-85-6 C23H24BrO2P 详情 详情
(XIII) 52930 (Z)-7-[(1R,2R,3R,5S)-5-hydroxy-2-[(E)-4-[2-iodo-5-(trifluoromethyl)phenoxy]-3-(tetrahydro-2H-pyran-2-yloxy)-1-butenyl]-3-(tetrahydro-2H-pyran-2-yloxy)cyclopentyl]-5-heptenoic acid C33H44F3IO8 详情 详情
(XIV) 52931 isopropyl (Z)-7-[(1R,2R,3R,5S)-5-hydroxy-2-[(E)-4-[2-iodo-5-(trifluoromethyl)phenoxy]-3-(tetrahydro-2H-pyran-2-yloxy)-1-butenyl]-3-(tetrahydro-2H-pyran-2-yloxy)cyclopentyl]-5-heptenoate C36H50F3IO8 详情 详情
(XV) 52932 isopropyl (Z)-7-((1R,2R,3R,5S)-3,5-dihydroxy-2-{(E,3R)-3-hydroxy-4-[2-iodo-5-(trifluoromethyl)phenoxy]-1-butenyl}cyclopentyl)-5-heptenoate C26H34F3IO6 详情 详情

合成路线3

该中间体在本合成路线中的序号:(VI)

 

1 Selliah R, Dantanarayana A, Haggard K, et al. 2001. Synthesis of [phenyl-2-3H]-travoprost; isopropyl ester prodrug of a selective prostaglandin FP receptor agonist. J Label Comp Radiopharm, 44(3): 173~183
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) 52922 2-iodo-5-(trifluoromethyl)phenol C7H4F3IO 详情 详情
(II) 52923 ethyl 2-[2-iodo-5-(trifluoromethyl)phenoxy]acetate n/a C11H10F3IO3 详情 详情
(III) 52924 dimethyl 3-[2-iodo-5-(trifluoromethyl)phenoxy]-2-oxopropylphosphonate C12H13F3IO5P 详情 详情
(IV) 66880 dimethyl 2-oxo-3-[3-(trifluoromethyl)phenoxy]propylphosphonate   C12H16F3O5P 详情 详情
(V) 33585 (8R,9S,10R,13S,14S)-13-ethyl-11-methylene-3-(1-pyrrolidinyl)-1,2,7,8,9,10,11,12,13,14,15,16-dodecahydro-17H-cyclopenta[a]phenanthren-17-one C24H33NO 详情 详情
(VI) 52925 (3aR,4R,5R,6aS)-4-{(E)-4-[2-iodo-5-(trifluoromethyl)phenoxy]-3-oxo-1-butenyl}-2-oxohexahydro-2H-cyclopenta[b]furan-5-yl benzoate C25H20F3IO6 详情 详情
(VII) 52926 (3aR,4R,5R,6aS)-4-{(E)-3-hydroxy-4-[2-iodo-5-(trifluoromethyl)phenoxy]-1-butenyl}-2-oxohexahydro-2H-cyclopenta[b]furan-5-yl benzoate C25H22F3IO6 详情 详情
(VIII) 52927 (3aR,4R,5R,6aS)-5-hydroxy-4-{(E)-3-hydroxy-4-[2-iodo-5-(trifluoromethyl)phenoxy]-1-butenyl}hexahydro-2H-cyclopenta[b]furan-2-one C18H18F3IO5 详情 详情
(IX) 52928 (3aR,4R,5R,6aS)-4-[(E)-4-[2-iodo-5-(trifluoromethyl)phenoxy]-3-(tetrahydro-2H-pyran-2-yloxy)-1-butenyl]-5-(tetrahydro-2H-pyran-2-yloxy)hexahydro-2H-cyclopenta[b]furan-2-one C28H34F3IO7 详情 详情
(X) 52929 (3aR,4R,5R,6aS)-4-[(E)-4-[2-iodo-5-(trifluoromethyl)phenoxy]-3-(tetrahydro-2H-pyran-2-yloxy)-1-butenyl]-5-(tetrahydro-2H-pyran-2-yloxy)hexahydro-2H-cyclopenta[b]furan-2-ol C28H36F3IO7 详情 详情
(XI) 52930 (Z)-7-[(1R,2R,3R,5S)-5-hydroxy-2-[(E)-4-[2-iodo-5-(trifluoromethyl)phenoxy]-3-(tetrahydro-2H-pyran-2-yloxy)-1-butenyl]-3-(tetrahydro-2H-pyran-2-yloxy)cyclopentyl]-5-heptenoic acid C33H44F3IO8 详情 详情
(XII) 52932 isopropyl (Z)-7-((1R,2R,3R,5S)-3,5-dihydroxy-2-{(E,3R)-3-hydroxy-4-[2-iodo-5-(trifluoromethyl)phenoxy]-1-butenyl}cyclopentyl)-5-heptenoate C26H34F3IO6 详情 详情
Extended Information