Two New Daphniphyllum Alkaloids from the Stems and Leaves of Daphniphyllum calycinum

✍ Scribed by Zhen-Yu Li; Shu-Ying Peng; Li Fang; Yi-Ming Yang; Yue-Wei Guo

• Publisher: John Wiley and Sons
• Year: 2009
• Tongue: English
• Weight: 200 KB
• Volume: 6
• Category: Article
• ISSN: 1612-1872
• DOI: 10.1002/cbdv.200700479

✦ Synopsis

Two new Daphniphyllum alkaloids, 9,10-epoxycalycinine A (1) and homodaphniphyllate (2), together with eight known related alkaloids, were isolated from the stems and leaves of Daphniphyllum calycinum. The structures of the new compounds 1 and 2 were elucidated on the basis of in-depth spectroscopic-data analysis, by chemical derivatization, and by comparison of their spectroscopic data with those of known compounds.