Method of resolution of hydroxy-cyclopentenones using a lipase and transacylation agents
申请人:G.D. Searle & Co.
公开号:EP0357009A2
公开(公告)日:1990-03-07
A process for irreversible regio- and stereoselective enzyme catalyzed acylation of alcohols using enol esters as acylating reagents is disclosed. The present invention permits the selective modification of hydroxyl group(s) of chiral and meso alcohols, including sugars, organometallics, and glycosides. The enol freed upon transesterification rapidly tautomerizes to the corresponding volatile aldehyde or ketone thereby preventing the reverse reaction from occurring.
Lipase-catalyzed irreversible transesterification using enol esters: resolution of prostaglandin synthons 4-hydroxy-2-alkyl-2-cyclopentenones and inversion of the 4S enantiomer to the 4R enantiomer
作者:Kevin A. Babiak、John S. Ng、John H. Dygos、Cara L. Weyker、Yi Fong Wang、Chi Huey Wong
DOI:10.1021/jo00297a073
日期:1990.5
BABIAK, KEVIN A.;NG, JOHN S.;DYGOS, JOHN H.;WEYKER, CARA L.;WANG, YI-FONG+, J. ORG. CHEM., 55,(1990) N0, C. 3377-3381
作者:BABIAK, KEVIN A.、NG, JOHN S.、DYGOS, JOHN H.、WEYKER, CARA L.、WANG, YI-FONG+