4-(tert-Butyl-diphenyl-silanyloxy)-3-methanesulfonyloxy-2-[2-((1S,4aS,4bR,8aR,10aR)-2,4b,8,8,10a-pentamethyl-1,4,4a,4b,5,6,7,8,8a,9,10,10a-dodecahydro-phenanthren-1-yl)-ethyl]-butyric acid methyl ester

Base Information

Chemical Name:4-(tert-Butyl-diphenyl-silanyloxy)-3-methanesulfonyloxy-2-[2-((1S,4aS,4bR,8aR,10aR)-2,4b,8,8,10a-pentamethyl-1,4,4a,4b,5,6,7,8,8a,9,10,10a-dodecahydro-phenanthren-1-yl)-ethyl]-butyric acid methyl ester
CAS No.:201670-68-0
Molecular Formula:C₄₃H₆₄O₆SSi
Molecular Weight:737.129
Hs Code.:

4-(tert-Butyl-diphenyl-silanyloxy)-3-methanesulfonyloxy-2-[2-((1S,4aS,4bR,8aR,10aR)-2,4b,8,8,10a-pentamethyl-1,4,4a,4b,5,6,7,8,8a,9,10,10a-dodecahydro-phenanthren-1-yl)-ethyl]-butyric acid methyl ester

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Chemical Property of 4-(tert-Butyl-diphenyl-silanyloxy)-3-methanesulfonyloxy-2-[2-((1S,4aS,4bR,8aR,10aR)-2,4b,8,8,10a-pentamethyl-1,4,4a,4b,5,6,7,8,8a,9,10,10a-dodecahydro-phenanthren-1-yl)-ethyl]-butyric acid methyl ester

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Technology Process of 4-(tert-Butyl-diphenyl-silanyloxy)-3-methanesulfonyloxy-2-[2-((1S,4aS,4bR,8aR,10aR)-2,4b,8,8,10a-pentamethyl-1,4,4a,4b,5,6,7,8,8a,9,10,10a-dodecahydro-phenanthren-1-yl)-ethyl]-butyric acid methyl ester

There total 4 articles about 4-(tert-Butyl-diphenyl-silanyloxy)-3-methanesulfonyloxy-2-[2-((1S,4aS,4bR,8aR,10aR)-2,4b,8,8,10a-pentamethyl-1,4,4a,4b,5,6,7,8,8a,9,10,10a-dodecahydro-phenanthren-1-yl)-ethyl]-butyric acid methyl 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:

: 124-63-0
methanesulfonyl chloride

: 201670-57-7
4-(tert-Butyl-diphenyl-silanyloxy)-3-hydroxy-2-[2-((1S,4aS,4bR,8aR,10aR)-2,4b,8,8,10a-pentamethyl-1,4,4a,4b,5,6,7,8,8a,9,10,10a-dodecahydro-phenanthren-1-yl)-ethyl]-butyric acid methyl ester

: 201670-68-0
4-(tert-Butyl-diphenyl-silanyloxy)-3-methanesulfonyloxy-2-[2-((1S,4aS,4bR,8aR,10aR)-2,4b,8,8,10a-pentamethyl-1,4,4a,4b,5,6,7,8,8a,9,10,10a-dodecahydro-phenanthren-1-yl)-ethyl]-butyric acid methyl ester

Guidance literature:: With triethylamine; In dichloromethane; at 0 ℃; for 0.25h;
DOI:10.1016/S0040-4020(97)10260-5

Reference yield:

: 115869-43-7
(tert-butyldiphenylsilanyloxy)acetaldehyde

: 201670-68-0
4-(tert-Butyl-diphenyl-silanyloxy)-3-methanesulfonyloxy-2-[2-((1S,4aS,4bR,8aR,10aR)-2,4b,8,8,10a-pentamethyl-1,4,4a,4b,5,6,7,8,8a,9,10,10a-dodecahydro-phenanthren-1-yl)-ethyl]-butyric acid methyl ester

Guidance literature:: Multi-step reaction with 3 steps

1: 280 mg / quinuclidin-3-ol / 720 h / Ambient temperature

2: 49 percent / n-Bu₃SnH / diethyl ether / 5 h / Irradiation

3: Et₃N / CH₂Cl₂ / 0.25 h / 0 °C

With tri-n-butyl-tin hydride; triethylamine; 3-quinuclidinol; In diethyl ether; dichloromethane;
DOI:10.1016/S0040-4020(97)10260-5

Reference yield:

: 58479-61-1
tert-butylchlorodiphenylsilane

: 201670-68-0
4-(tert-Butyl-diphenyl-silanyloxy)-3-methanesulfonyloxy-2-[2-((1S,4aS,4bR,8aR,10aR)-2,4b,8,8,10a-pentamethyl-1,4,4a,4b,5,6,7,8,8a,9,10,10a-dodecahydro-phenanthren-1-yl)-ethyl]-butyric acid methyl ester

Guidance literature:: Multi-step reaction with 4 steps

1: 1) Et₃N, 2) DMAP / 1) CH₂Cl₂, room temperature, 2 min, 2) CH₂Cl₂, room temperature, 1 d

2: 280 mg / quinuclidin-3-ol / 720 h / Ambient temperature

3: 49 percent / n-Bu₃SnH / diethyl ether / 5 h / Irradiation

4: Et₃N / CH₂Cl₂ / 0.25 h / 0 °C

With dmap; tri-n-butyl-tin hydride; triethylamine; 3-quinuclidinol; In diethyl ether; dichloromethane;
DOI:10.1016/S0040-4020(97)10260-5