CUCURBITANE TRITERPENOIDS FROM THE LEAVES OF MOMORDICA FOETIDA

摘要

The chloroform extract of the leaves of Momordica foetida has yielded 3 beta, 7 beta, 23 xi-trihydroxycucurbita-5,24-dien-19-al, 3 beta, 7 beta; 25-trihydroxycucurbita-5,23-dien-19-al and 3 beta,7 beta-dihydroxy-25-methoxycucurbita-5,23-dien-19-al and the novel compounds 5 beta,19-epoxy-25-methoxycucurbita-6,23-diene-3 beta,19-diol, 5 beta,19-epoxycucurbita-6,23-diene-3 beta,19,25-triol, 5 beta,19-epoxy-19-methoxycucurbita-6,23-diene-3 beta,25-diol, 5 beta,19-epoxy-19,25-dimethoxycucurbita-6,23-dien-3 beta-ol and 5 beta,19-epoxy-25-methoxy-cucurbita-6,23-dien-3 beta-ol.