摘要
用(S)-[Ru(BINAP)Cl2]2(NEt3)作催化剂,不对称氢化还原(4-氯苯基)-(吡啶-2-基)-甲酮得到(S)-(+)-(4-氯苯基)-(吡啶-2-基)-甲醇,与4-(4-溴哌啶-1-基)丁酸乙酯缩合,再经水解、成盐得到抗过敏药苯磺酸贝他斯汀,总收率57%。
Bepotastine besilate was synthesized from (4-chlorophenyl)-(pyridine-2-yl)-methanone by asymmetric hydrogenation with (S)- [Ru (BINAP) Cl2] 2 (NEt3) as the catalyst to give (S) - (+)- (4-chlorophenyl)- (pyridine-2-yl)-methanol, which was subjected to condensation with ethyl 4-(4-bromopiperidin-1-yl) butyrate followed by hydrolysis and salification with an overall yield of 57 %.
出处
《中国医药工业杂志》
CAS
CSCD
北大核心
2006年第11期726-727,755,共3页
Chinese Journal of Pharmaceuticals
关键词
苯磺酸贝他斯汀
抗过敏药
不对称合成
bepotastine besilate
antiallergic agent
asymmetry synthesis