(22S)-butyl-2-methylidene-26,27-dimethyl-19,24-dinor-1α,25-dihydroxyvitamin D3

Base Information

Chemical Name:(22S)-butyl-2-methylidene-26,27-dimethyl-19,24-dinor-1α,25-dihydroxyvitamin D3
CAS No.:1374221-62-1
Molecular Formula:C₃₂H₅₄O₃
Molecular Weight:486.779
Hs Code.:

Synonyms:(22S)-butyl-2-methylidene-26,27-dimethyl-19,24-dinor-1α,25-dihydroxyvitamin D3

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Chemical Property of (22S)-butyl-2-methylidene-26,27-dimethyl-19,24-dinor-1α,25-dihydroxyvitamin D3

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Technology Process of (22S)-butyl-2-methylidene-26,27-dimethyl-19,24-dinor-1α,25-dihydroxyvitamin D3

There total 2 articles about (22S)-butyl-2-methylidene-26,27-dimethyl-19,24-dinor-1α,25-dihydroxyvitamin D3 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: 91.0%

: 1374221-66-5
(5S)-4-{1-[(1R,3R,7E,17β)-1,3-bis{[tert-butyl(dimethyl)silyl]-oxy}-2-methylidene-9,10-secoestra-5,7-dien-17-yl]ethyl}-3-ethylnonan-3-ol

: 1374221-62-1
(22S)-butyl-2-methylidene-26,27-dimethyl-19,24-dinor-1α,25-dihydroxyvitamin D3

Guidance literature:: With camphor-10-sulfonic acid; In methanol; at 20 ℃; Inert atmosphere;
DOI:10.1021/jm300230a

Reference yield:

: 1237750-64-9
ethyl (3S)-3-{1-[(1R,3R,7E,17β)-1,3-bis{[tert-butyl(dimethyl)silyl]oxy}-2-methylidene-9,10-secoestra-5,7-dien-17-yl]ethyl}heptanoate

: 1374221-62-1
(22S)-butyl-2-methylidene-26,27-dimethyl-19,24-dinor-1α,25-dihydroxyvitamin D3

Guidance literature:: Multi-step reaction with 2 steps

1: diethyl ether / 3.5 h / 20 °C / Inert atmosphere

2: camphor-10-sulfonic acid / methanol / 20 °C / Inert atmosphere

With camphor-10-sulfonic acid; In methanol; diethyl ether;
DOI:10.1021/jm300230a