Two novel anti-emetic principles of Alpinia katsumadai

¹Department of Pharmacognosy and Phytochemistry, Meiji Pharmaceutical University, Tokyo, Japan.

|February 2, 2000

Abstract:

Two novel diarylheptanoids named katsumadain A (1) and katsumadain B (2) were isolated from the seeds of Alpinia katsumadai, and their structures were determined by spectroscopic analysis. Both katsumadains A (1) and B (2) showed anti-emetic activities on copper sulfate-induced emesis in young chicks.

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