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Structures and solid state tautomeric forms of two novel antileukemic tropoloisoquinoline alkaloids, pareirubrines A and B, from Cissampelos pareira. | LitMetric
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Structures and solid state tautomeric forms of two novel antileukemic tropoloisoquinoline alkaloids, pareirubrines A and B, from Cissampelos pareira.

H Morita K Matsumoto K Takeya H Itokawa Y Iitaka

Chem Pharm Bull (Tokyo)

Department of Pharmacognosy, Tokyo College of Pharmacy, Japan.

Published: August 1993

Two novel tropoloisoquinoline alkaloids, Pareirubrines A and B, have been isolated as antileukemic substances from Cissampelos pareira (Menispermaceae), together with the same skeleton alkaloids, grandirubrine and isoimerubrine. Their structures were elucidated by nuclear magnetic resonance (NMR) studies, and their solid state tautomeric forms were examined by X-ray crystallographic analysis.

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http://dx.doi.org/10.1248/cpb.41.1418DOI Listing

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