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Two New C-21 Steroidal Glycosides from the Stems of Stephanotis mucronata 被引量:3
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作者 李晓誉 陈峰阳 +1 位作者 叶益萍 潘远江 《Chinese Journal of Chemistry》 SCIE CAS CSCD 2007年第5期698-704,共7页
Two new C-21 steroidal glycosides, mucronatosides M(1) and N(2), were isolated from the stems of Stephanotis mucronata, together with one known compound stephanoside M(3). On the basis of chemical evidence and e... Two new C-21 steroidal glycosides, mucronatosides M(1) and N(2), were isolated from the stems of Stephanotis mucronata, together with one known compound stephanoside M(3). On the basis of chemical evidence and extensive spectroscopic methods, including one-dimensional and two-dimensional NMR, the structures of the two new compounds were identified as 12-O-tigloyl-20-O-N-methylanthraniloyl sarcoslin 3-O-β-D-glucopyranosyl-(1→4)-6- deoxy-3-O-methyl-β-D-allopyranosyl-(→4)-β-D-cymaropyranosyl-(1→4)-β-D-cymaropyranoside (1), and 12-O- cinnamoyl-20-O-nicotinoyl( 2OS)-pregn-6-ene-3 β,5α,8βm12 β,14β,17β,20-heptanol 3-O-β-D-glucopyranosyl-(1→4)-6- deoxy-3-O-methyl-β-D-allopyranosyl-(1→4)-β-D-cymaropyranosyl-(1→4)-β-D-cymaropyranoside (2). 展开更多
关键词 stephanotis mucronata asclepiadaceae steroidal glycosides mucronatosides
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