Thomandersine and isothomandersine, 2-indolinone alkaloids from Thomandersia laurifolia
摘要:
In addition to the usual phytosterol mixture, taraxeryl palmitate and maslinic acid, two new 2-indolinone alkaloids, thomandersine and isothomandersine, have been isolated from a methanol extract of the leaves of Thomandersia laurifolia. Their structures were elucidated by spectroscopic methods and chemical correlations.