doi: 10.1021/np010042g.
New indole alkaloids from the bark of Nauclea orientalis
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- PMID: 11520214
- DOI: 10.1021/np010042g
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New indole alkaloids from the bark of Nauclea orientalis
J Nat Prod.
2001 Aug.
Abstract
Four new alkaloids, nauclealines A (1) and B (2) and naucleosides A (3) and B (4), together with six known compounds, strictosamide (5), vincosamide (6), pumiloside (7), kelampayoside A, sitosterol, and sitosteryl beta-D-glucoside, were isolated from the bark of Nauclea orientalis. The structures of 1-4 were elucidated using 1D and 2D NMR spectral methods, including COSY, DEPT, HMQC, (13)C-(1)H HMBC, and (15)N-(1)H HMBC.
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