Methods for the esterification of alcohols and compounds useful therefor as potential anticancer agents
申请人:Emory University
公开号:US20020087026A1
公开(公告)日:2002-07-04
The invention relates to a method for preparing an ester, by admixing a compound having the structure I:
1
with a base and a compound composed of an alcohol, an alkoxide, or a combination thereof.
Efficient Syntheses and Ring-Opening Reactions of <i>trans</i>- and <i>cis</i>-Oxazoline-5-carboxylates
作者:Sang-Hyeup Lee、Juyoung Yoon、Kensuke Nakamura、Yoon-Sik Lee
DOI:10.1021/ol005681h
日期:2000.5.1
cis and trans-Oxazoline-5-carboxylates were synthesized efficiently from isopropyl trans-cinnamate utilizing the Sharpless AA reaction. trans-Oxazoline was much more reactive than the cis-isomer toward ring opening reactions. From ab initio molecular calculations, the cis-isomer was predicted to be less reactive than the trans-isomer by 2.7 kcal/mol. Both syn and anti acetylthio esters and anti diamino esters were synthesized from these cis- and trans-oxazoline-5-carboxylates.
METHODS FOR THE ESTERIFICATION OF ALCOHOLS AND COMPOUNDS USEFUL THEREFOR AS POTENTIAL ANTICANCER AGENTS