Mu SZ, Wang JS, Yang XS, He HP, Li CS, Di YT, Wang Y, Zhang Y, Fang X, Huang LJ, Hao XJ. Alkaloids from Daphniphyllum oldhami.
JOURNAL OF NATURAL PRODUCTS 2008;
71:564-569. [PMID:
18288811 DOI:
10.1021/np070512s]
[Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Four new Daphniphyllum alkaloids, daphnioldhanines H-K ( 1- 4), along with 34 known alkaloids, were isolated from Daphniphyllum oldhami. The known alkaloid dehydrodaphnigraciline ( 5) is now reported as a natural product. Their structures were elucidated by spectroscopic methods, especially 2D NMR techniques. The effects against platelet aggregation of compounds 1, 3, and 5 were evaluated, and 3 showed stronger activity against platelet aggregation induced by PAF. This is the first report of quinolizidine alkaloids from the genus Daphniphyllum.
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