Chemical resolution of enantiomers of 3,4-dihydropyrimidin-2(1H)-ones using chiral auxiliary approach
作者:Kamaljit Singh、Kawaljit Singh、Hardeep Kaur
DOI:10.1016/j.tet.2012.05.073
日期:2012.8
Inherently racemic DHPMs have been resolved using chemical resolution methodology by appending enantiopure chiral auxiliary at N-1 or N-3 position of the DHPMs, leading to the formation of both diastereomers, which were separated chromatographically to obtain both enantiomers (ee upto 99.9%) of DHPMs, after removal of the auxiliary. Absolute configuration of the enantiomers has been assigned. (C) 2012 Elsevier Ltd. All rights reserved.