(20R)-1α-[(tert-butyldimethylsilyl)oxy]-16-ene-22-thia-25-[(triethylsilyl)oxy]-26,27-dimethyl-19,24-dinorvitamin D₃ tert-butyldimethylsilyl ester

Base Information

• Chemical Name: (20R)-1α-[(tert-butyldimethylsilyl)oxy]-16-ene-22-thia-25-[(triethylsilyl)oxy]-26,27-dimethyl-19,24-dinorvitamin D₃ tert-butyldimethylsilyl ester
• CAS No.: 908862-38-4
• Molecular Formula: C₄₄H₈₄O₃SSi₃
• Molecular Weight: 777.472

Synonyms:(20R)-1α-[(tert-butyldimethylsilyl)oxy]-16-ene-22-thia-25-[(triethylsilyl)oxy]-26,27-dimethyl-19,24-dinorvitamin D₃ tert-butyldimethylsilyl ester

Chemical Property of (20R)-1α-[(tert-butyldimethylsilyl)oxy]-16-ene-22-thia-25-[(triethylsilyl)oxy]-26,27-dimethyl-19,24-dinorvitamin D₃ tert-butyldimethylsilyl ester

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Technology Process of (20R)-1α-[(tert-butyldimethylsilyl)oxy]-16-ene-22-thia-25-[(triethylsilyl)oxy]-26,27-dimethyl-19,24-dinorvitamin D₃ tert-butyldimethylsilyl ester

There total 1 articles about (20R)-1α-[(tert-butyldimethylsilyl)oxy]-16-ene-22-thia-25-[(triethylsilyl)oxy]-26,27-dimethyl-19,24-dinorvitamin D₃ tert-butyldimethylsilyl 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: 18.0%

C24H44O2SSi (908862-37-3) + (1R,3R)-1,3-bis((tert-butyldimethyl)silanyloxy)-5-[2-(diphenylphosphinoyl)-ethylidene]cyclohexane (139356-39-1) → (20R)-1α-[(tert-butyldimethylsilyl)oxy]-16-ene-22-thia-25-[(triethylsilyl)oxy]-26,27-dimethyl-19,24-dinorvitamin D3 tert-butyldimethylsilyl ester (908862-38-4)

Guidance literature:

(1R,3R)-1,3-bis((tert-butyldimethyl)silanyloxy)-5-[2-(diphenylphosphinoyl)-ethylidene]cyclohexane; With n-butyllithium; In tetrahydrofuran; hexane; at -78 ℃; for 0.25h;

C₂₄H₄₄O₂SSi; In tetrahydrofuran; hexane; at -78 ℃; for 2h; Further stages.;

DOI:10.1016/j.bmc.2007.11.013

Reference yield: 98.0%

(20R)-1α-[(tert-butyldimethylsilyl)oxy]-16-ene-22-thia-25-[(triethylsilyl)oxy]-26,27-dimethyl-19,24-dinorvitamin D3 tert-butyldimethylsilyl ester (908862-38-4) → C26H42O3S (908862-00-0)

Guidance literature:

With (-)-10-camphor sulfonic acid; In methanol; at 20 ℃; for 0.025h;

DOI:10.1016/j.bmc.2007.11.013

upstream raw materials:

C₂₄H₄₄O₂SSi

(1R,3R)-1,3-bis((tert-butyldimethyl)silanyloxy)-5-[2-(diphenylphosphinoyl)-ethylidene]cyclohexane

Downstream raw materials:

C₂₆H₄₂O₃S

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