Daphnoldines A and B, Two New Yuzurine Alkaloids with a Four‐Ring System, from the Fruits of Daphniphyllum oldhami

Helvetica Chimica Acta
2008.0

Abstract

Two new yuzurine alkaloids, daphnoldines A (1) and B (2), possessing a rare four-ring system, were isolated from the fruits of Daphniphyllum oldhami. Their structures were established on the basis of extensive spectroscopic analyses. Daphnoldine A (1) is the first example of Daphniphyllum alkaloids bearing a hydroxymethyl group at C(14).

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