© Georg Thieme Verlag Stuttgart · New York
Phytoecdysteroids of Diploclisia glaucescens Seed
26 February 2007 (online)
Five phytoecdysteroids were isolated from the seeds of Diploclisia glaucescens and identified by spectrometric methods (1H-NMR, 13C-NMR and CIMS). One of them, 24-epi- makisterone A, has not been reported before. The other four - 20-hydroxyecdysone, makisterone A, 24(28)-dehydromakisterone A and pterosterone - were known previously. The 13C-NMR spectrum of 24(28)-dehydromakisterone A is presented for the first time.