Journal of Organic Chemistry p. 5207 - 5214 (1983)
Update date:2022-08-05
Topics:
Catalan, Cesar A. N.
Kokke, W. C. M. C.
Duque, Carmenza
Djerassi, Carl
Both epimers at C-24 of 5,28-stigmastadien-3β-ol (24-vinylcholesterol) were synthesized from 5,24(28)-ergostadien-3β-ol, and their configuration at C-24 was determined by conversion into clionasterol and sitosterol. 24-Vinylcholesterol has not yet been found in nature, but it is a possible intermediate in the biosynthesis of 24-propylcholesterol and 24-propylidenecholesterol.A structurally related compound, 5,28-stigmastadiene-3β,24ξ-diol (saringosterol), first isolated from a brown seaweed, was shown to be a mixture of epimers at C-24.They were seperated and their configuration was determined by correlation with fucosterol and isofucosterol 24(28)-epoxides of known stereochemistry.
View MoreTaizhou Shengxing Chempharm Co.,Ltd
Contact:+86-576-88516600
Address:Yantou Chemical Zone Jiaojiang Taizhou Zhejiang China
Contact:+86 21 34123252
Address:14, 4580 Dushi, Shanghai, China
taicang liyuan chemical co,.ltd
website:http://www.tcliyuanchem.com/productse.php
Contact:86-512-53539583
Address:Room 804,Huaxu Building,No.95,Renmin South Road,Taicang city,Jiangsu Province,China
website:http://www.biet.com.cn/
Contact:+86-27-8369 8488
Address:No. 6, Building 21, China Merchants Fanwang, Sixin North Road, Hanyang District, Wuhan City, Hubei Province
Shandong Xiangde Biotechnology Co., Ltd
Contact:+86 -15066639877
Address:Sanba street
Doi:10.1002/hlca.200590255
(2005)Doi:10.1021/ja051744l
(2005)Doi:10.1021/ja00539a025
(1980)Doi:10.1515/chempap-2015-0246
(2016)Doi:10.3390/70200145
(2002)Doi:10.1021/ol052891r
(2006)