Original ArticleConstituents of Corynaea crassa “Peruvian Viagra”
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Graphical abstract
Unusual complex 1:1 mixtures of lupenone/β-amyrone and lupeol/β-amyrine were isolated from Corynaea crassa. The structure of the 1:1 lupenone/β-amyrone mixture was confirmed by X-ray and these triterpene ketone derivatives, only distinguished either by 5- or 6-membered E ring, co-crystallize in one common unit cell in the solid state.
Keywords
β-Amyrone
β-Amyrine
Corynaea crassa
Huanarpo
Lupenone
Lupeol/β-sitosterol
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Copyright © 2015 Sociedade Brasileira de Farmacognosia. Published by Elsevier Editora Ltda.