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Two New Daphniphyllum Alkaloids from Daphniphyllum calycinum

✍ Scribed by Du-Qiang Luo; Wen-Liang Zhu; Xiao-Long Yang; Shu-Juan Liang; Zhi-Ran Cao

Publisher
John Wiley and Sons
Year
2010
Tongue
German
Weight
349 KB
Volume
93
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

Two new daphniphyllum alkaloids named 2‐hydroxyyunnandaphnine D (1) and methyl 7‐hydroxyhomodaphniphyllate (2), together with eight known alkaloids, daphnioldhanin D, calyciphylline F, calyciphylline B, deoxycalyciphylline B, daphnicyclidin H, macropodumine C, 9,10‐epoxycalycine A, and yunnandaphnine A, were isolated from the stems and leaves of Daphniphyllum calycinum. Their structures and relative configurations were established on the basis of spectral evidence (including 2D‐NMR) and subsequently confirmed by a single‐crystal X‐ray crystallographic diffraction analysis.

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