Stemocurtisine, the first pyrido[1,2-a]azapine Stemona alkaloid.
نویسندگان
چکیده
A new pentacyclic stemona alkaloid, stemocurtisine (2), with a novel pyrido[1,2-a]azapine A,B-ring system, has been isolated from a root extract of Stemona curtisii. The structure and relative stereochemistry was determined by spectral data interpretation and X-ray crystallography.
منابع مشابه
Phytochemical investigations of Stemona curtisii and synthetic studies on stemocurtisine alkaloids.
The isolation of two new Stemona alkaloids, 1-hydroxyprotostemonine and stemocurtisine N-oxide, and a new benzofuran, stemofuran L, from the root extracts of Stemona curtisii is reported. The major known alkaloids from this plant extract, stemocurtisine, stemocurtisinol, and oxyprotostemonine, were also isolated along with oxystemokerrine N-oxide. The nonalkaloid components of this extract incl...
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ورودعنوان ژورنال:
- Journal of natural products
دوره 66 7 شماره
صفحات -
تاریخ انتشار 2003