摘要
A novel triterpene of protostane type alizexol A(1).the first compound of this class having a substituted tetraltydropyran ring.has been isolated from the rhizome of Alisma orientalis (Sam) Juzep.The structure was elucidated by spectral data.and the ring conformation was analyzed by NOESY experiment.
A novel triterpene of protostane type alizexol A(1).the first compound of this class having a substituted tetraltydropyran ring.has been isolated from the rhizome of Alisma orientalis (Sam) Juzep.The structure was elucidated by spectral data.and the ring conformation was analyzed by NOESY experiment.
