Epoxidation of pyrrolizidine alkaloids. I. Chemical conversion of seneciphylline and jacozine to senecicannabine.
作者:YOSHIHISA ASADA、TSUTOMU FURUYA
DOI:10.1248/cpb.32.4616
日期:——
A new pyrrolizidine alkaloid, senecicannabine (4) which was isolated from Senecio cannabifolius was derived from seneciphylline (1) by oxidation with performic acid. The transformation of jacozine (6) to 4 was also carried out with performic acid, and the configuration of the epoxide ring of 6 was chemically determined to be 15S and 20S.