Aristolactams and further constituents from Aristolochia chamissonis
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Abstract
From the ethanol extract of the stems of Aristolochia chamissonis, spathulenol, sitosterol, b-sitosteryl-D-glucoside, kolavelool, 13-epi-2-oxo-kolavelool, trans-N-p-coumaroyltyramine, allantoin, aristolochic acid I, and aristolactam AII were isolated. The structures of aristolactam AII and piperolactam A have been revised by means of spectroscopic methods and chemical derivatizations.
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References
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