Stereoselective Syntheses of Rolliniastatin 1, Rollimembrin, and Membranacin
摘要:
A radical cyclization of beta-alkoxyvinyl sulfoxides-Pummerer rearrangement-allylation protocol was successfully applied to the synthesis of the threo/cis/threo/cis/erythro bis-oxolane moiety in rolliniastatin 1 (1), rollimembrin (2), and membranacin (3).
Stereoselective Syntheses of Rolliniastatin 1, Rollimembrin, and Membranacin
作者:Gyochang Keum、Cheol Hee Hwang、Soon Bang Kang、Youseung Kim、Eun Lee
DOI:10.1021/ja0526867
日期:2005.7.1
A radical cyclization of beta-alkoxyvinyl sulfoxides-Pummerer rearrangement-allylation protocol was successfully applied to the synthesis of the threo/cis/threo/cis/erythro bis-oxolane moiety in rolliniastatin 1 (1), rollimembrin (2), and membranacin (3).
New method for the determination of the absolute stereochemistry in antitumoral annonaceous acetogenins
作者:M. Carmen González、Catherine Lavaud、Teresa Gallardo、M. Carmen Zafra-Polo、Diego Cortes
DOI:10.1016/s0040-4020(98)00301-9
日期:1998.5
several acetogenins were determined through p-bromophenylurethane derivatives and subsequent Mosher ester methodology. This method has been applied on α,α′-dihydroxylated adjacent bis-THF acetogenins with a threo/cis/threo/cis/erythro relative configuration membrarollin (1), a new acetogenin isolated from Rollinia membranacea seeds, rollimembrin (2), membranacin (3) and rolliniastatin-1 (4), and a th