摘要
以对羟基肉桂酸为起始原料经甲酯化,苄基保护酚羟基酯水解得苄氧基肉桂酸,经水解得对苄氧基肉桂酸再与齐墩果酸成酯,经脱苄基保护得3β-(4-羟基肉桂酰)氧基齐墩果酸衍生物,总收率为39.6%。其结构均经1H NMR和MS确认。
The title compound was synthesized in overall yield of 57.7% starting from 4-hydroxy cinnamic acid via esterification,hydroxyl protection,hydrolysis,condensation with oleanolic acid and deprotection.It's structure was confirmed by 1H NMR and MS spectra.
出处
《精细化工中间体》
CAS
2013年第1期22-24,共3页
Fine Chemical Intermediates
关键词
对羟基肉桂酸
酯化
齐墩果酸
4-Hydroxy cinnamic acid
esterification
oleanolic acid