作者:Per M. Boll、Jesper Hansen、Ole Simonsen、Niels Thorup
DOI:10.1016/0040-4020(84)85116-9
日期:1984.1
The structure of piplartine (=piperlongumine) was established as ()--3',4',5'-trimethoxycinnamoyl-5,6-dihydro-2(1H)-pyridone () by synthesis and by an X-ray crystallographic analysis. Model condensation of ()-3,4,5-trimethoxycinnamoyl chloride and crotonamide gave not the expected cinnamoylcrotonamide, but ()--3', 4', 5' -trimethoxycinnamoyl-3-chlorobutyramide ().
通过合成和X射线晶体分析,确定了吡哌汀(=哌隆定)的结构为()--3 ',4',5'-三甲氧基肉桂酰基-5,6-二氢-2(1H)-吡啶酮() 。()-3,4,5-三甲氧基肉桂酰氯和巴豆酰胺的模型缩合反应未得到预期的肉桂酰巴豆酰胺,而是()-3',4',5'-三甲氧基肉桂酰-3-氯丁酰胺()。