Benzoic acid (3S,7R,8R,9S,10S,13S,14S,17S)-17-acetoxy-7-isobutyryloxy-10-(methoxycarbonylmethoxyimino-methyl)-13-methyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester

Base Information

Chemical Name:Benzoic acid (3S,7R,8R,9S,10S,13S,14S,17S)-17-acetoxy-7-isobutyryloxy-10-(methoxycarbonylmethoxyimino-methyl)-13-methyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester
CAS No.:188176-07-0
Molecular Formula:C₃₅H₄₅NO₉
Molecular Weight:623.744
Hs Code.:

Benzoic acid (3S,7R,8R,9S,10S,13S,14S,17S)-17-acetoxy-7-isobutyryloxy-10-(methoxycarbonylmethoxyimino-methyl)-13-methyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester

Synonyms:Benzoic acid (3S,7R,8R,9S,10S,13S,14S,17S)-17-acetoxy-7-isobutyryloxy-10-(methoxycarbonylmethoxyimino-methyl)-13-methyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester

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Chemical Property of Benzoic acid (3S,7R,8R,9S,10S,13S,14S,17S)-17-acetoxy-7-isobutyryloxy-10-(methoxycarbonylmethoxyimino-methyl)-13-methyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester

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Technology Process of Benzoic acid (3S,7R,8R,9S,10S,13S,14S,17S)-17-acetoxy-7-isobutyryloxy-10-(methoxycarbonylmethoxyimino-methyl)-13-methyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester

There total 4 articles about Benzoic acid (3S,7R,8R,9S,10S,13S,14S,17S)-17-acetoxy-7-isobutyryloxy-10-(methoxycarbonylmethoxyimino-methyl)-13-methyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 94.0%

: 79-30-1
isobutyryl chloride

: 188176-06-9
Benzoic acid (3S,7R,8R,9S,10S,13S,14S,17S)-17-acetoxy-7-hydroxy-10-(methoxycarbonylmethoxyimino-methyl)-13-methyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester

: 188176-07-0
Benzoic acid (3S,7R,8R,9S,10S,13S,14S,17S)-17-acetoxy-7-isobutyryloxy-10-(methoxycarbonylmethoxyimino-methyl)-13-methyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester

Guidance literature:: With pyridine; at 0 ℃; for 3h;
DOI:10.1135/cccc19970109

Reference yield:

: 188175-95-3
Benzoic acid (3S,8R,9S,10S,13S,14S,17S)-17-acetoxy-10-(carboxymethoxyimino-methyl)-13-methyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester

: 188176-07-0
Benzoic acid (3S,7R,8R,9S,10S,13S,14S,17S)-17-acetoxy-7-isobutyryloxy-10-(methoxycarbonylmethoxyimino-methyl)-13-methyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester

Guidance literature:: Multi-step reaction with 4 steps

1: diethyl ether; methanol / 0.08 h / 0 °C

2: 51 percent / CrO₃, 3,5-dimethylpyrazole / CH₂Cl₂ / 3 h / -20 °C

3: 83 percent / CeCl₃*5H₂O, NaBH₄ / tetrahydrofuran; methanol / 0.12 h

4: 94 percent / pyridine / 3 h / 0 °C

With pyridine; 3,5-dimethyl-1H-pyrazole; chromium(VI) oxide; sodium tetrahydroborate; cerium(III) chloride; In tetrahydrofuran; methanol; diethyl ether; dichloromethane;
DOI:10.1135/cccc19970109

Reference yield:

: 188176-05-8
Benzoic acid (3S,8R,9S,10S,13S,14S,17S)-17-acetoxy-10-(methoxycarbonylmethoxyimino-methyl)-13-methyl-7-oxo-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester

: 188176-07-0
Benzoic acid (3S,7R,8R,9S,10S,13S,14S,17S)-17-acetoxy-7-isobutyryloxy-10-(methoxycarbonylmethoxyimino-methyl)-13-methyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester

Guidance literature:: Multi-step reaction with 2 steps

1: 83 percent / CeCl₃*5H₂O, NaBH₄ / tetrahydrofuran; methanol / 0.12 h

2: 94 percent / pyridine / 3 h / 0 °C

With pyridine; sodium tetrahydroborate; cerium(III) chloride; In tetrahydrofuran; methanol;
DOI:10.1135/cccc19970109