An efficient asymmetric synthesis of (S)-atenolol: using hydrolytic kinetic resolution
摘要:
Enantiomerically pure (S)-atenolol was prepared by using (R,R) salen Co(III) complex for the resolution of terminal epoxide. This process was carried out at room temperature in excellent enantio selectivity. The method can be applied for large-scale preparation of (S)-atenolol without any problem. (C) 2004 Elsevier Ltd. All rights reserved.
(α1-AR) antagonists are considered to be the most effective monotherapy agents for lower urinary tract symptoms associated with benign prostatic hyperplasia (LUTS/BPH). In this study, we synthesized compounds 2–17, which are novel piperazine derivatives that contain methyl phenylacetate. We then evaluated the vasodilatory activities of these compounds. Among them, we found that compounds 2, 7, 12, which
Highly active new chiral Co(iii) salen catalysts immobilized by electrostatic interaction with sulfonic acid linkages on ordered mesoporous SBA-16 silica
作者:Yong-Suk Kim、Xiao-Feng Guo、Geon-Joong Kim
DOI:10.1039/b906350a
日期:——
New chiral cobalt(III) salen complexes immobilized via HO3S-linkers on ordered SBA-16 by electrostatic interactions showed very high activity in enantioselective ring-opening reactions of racemic epoxides.
Process for the preparation of esters of 4-(2,3-epoxypropoxy)phenylacetic acid and 4-(2-hydroxy-3-isopropylamino-propoxy)phenylacetic acid and/or atenolol in stereospecific form