The Alkaloids from Leaves of Croton hemiargyerius var. gymnodiscus
摘要
Aim Investigation of alkaloids from the leaves of Brazilian medicinal plant Croton hemiargyerius var. gymnodiscus . Methods Silica gel column chromatography was used repeatedly for the isolation and purification, and their structures were identified by extensive spectroscopy and comparison of the chemical and physical data with those of authentic samples reported in literature. Results Twelve alkaloids were isolated and their structures were identified. Conclusion Four new alkaloids named hemiargines A (1), B (5), C (6) and D (7), together with eight known alkaloids namely isocorydine (2), corydine (3), norcorydine (4), salutaridine (8), glaucine (9), tetrahydropalmatrubine (10), xylopinoine (11), and norlaudanosine (12) were isolated.
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Lin Wen. The Alkaloids from Leaves of Croton hemiargyerius var. gymnodiscus[J]. 未知来源, 2003.
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