890528-67-3

Upstream product

• 58479-61-1 tert-butylchlorodiphenylsilane 
• 71837-87-1 methyl 3α-hydroxy-7α-acetoxy-12-oxocholanate 
• 890528-65-1 (R)-4-[(3R,5R,7R,8R,9S,10S,13R,17R)-7-Acetoxy-3-(tert-butyl-diphenyl-silanyloxy)-12-hydroxy-10,13-dimethyl-2,3,4,5,6,7,8,9,10,11,12,13,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl]-pentanoic acid methyl ester 
• 890528-64-0 (R)-4-[(3R,5R,7R,8R,9S,10S,13R,14S,17R)-7-Acetoxy-3-(tert-butyl-diphenyl-silanyloxy)-10,13-dimethyl-12-oxo-hexadecahydro-cyclopenta[a]phenanthren-17-yl]-pentanoic acid methyl ester 
• 890528-77-5 (R)-4-[(3R,5R,7R,8R,9S,10S,13R,17R)-7-Acetoxy-3-(tert-butyl-diphenyl-silanyloxy)-10,13-dimethyl-2,3,4,5,6,7,8,9,10,11,12,13,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl]-pentanoic acid methyl ester 
• 890528-66-2 (E)-(R)-4-[(3R,5R,7R,8R,9S,10S,13R,17R)-7-Acetoxy-3-(tert-butyl-diphenyl-silanyloxy)-10,13-dimethyl-2,3,4,5,6,7,8,9,10,11,12,13,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl]-pent-2-enoic acid methyl ester 

Downstream Products

• 890528-79-7 5-{1-[7-acetoxy-3-(tert-butyl-diphenyl-silanyloxy)-10,13-dimethyl-2,3,4,5,6,7,8,9,10,11,12,13,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl]-ethyl}-2,2-dimethyl-[1,3]dioxolane-4-carboxylic acid methyl ester 
• 890528-69-5 tert-butyl-[17-{1-[5-(1-isopropyl-vinyl)-2,2-dimethyl-[1,3]dioxolan-4-yl]-ethyl}-7-(4-methoxy-benzyloxy)-10,13-dimethyl-2,3,4,5,6,7,8,9,10,11,12,13,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yloxy]-diphenyl-silane 
• 890528-81-1 1-(5-{1-[3-(tert-butyl-diphenyl-silanyloxy)-7-(4-methoxy-benzyloxy)-10,13-dimethyl-2,3,4,5,6,7,8,9,10,11,12,13,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl]-ethyl}-2,2-dimethyl-[1,3]dioxolan-4-yl)-2-methyl-propan-1-one 
• 890528-68-4 5-{1-[3-(tert-butyl-diphenyl-silanyloxy)-7-(4-methoxy-benzyloxy)-10,13-dimethyl-2,3,4,5,6,7,8,9,10,11,12,13,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl]-ethyl}-2,2-dimethyl-[1,3]dioxolane-4-carboxylic acid methyl ester 
• 890528-80-0 5-{1-[3-(tert-butyl-diphenyl-silanyloxy)-7-hydroxy-10,13-dimethyl-2,3,4,5,6,7,8,9,10,11,12,13,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl]-ethyl}-2,2-dimethyl-[1,3]dioxolane-4-carboxylic acid methyl ester 

Relevant academic research and scientific papers

Synthesis of Gymnasterone B, an antitumor steroid from Gymnascella dankaliensis

A stereoselective approach toward a marine natural product, Gymnasterone B, has been achieved via a series reaction from cholic acid.