A Short Synthesis of the New Vallesiachotamine Lactone from Cephaelis dichroa (Standley)

Anita Engler,Iris Klein,Dietrich Spitzner

NATURAL PRODUCT LETTERS（2006）

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摘要

The new vallesiachotamine lactone (1) is synthesized-from lactone 5aby selenium mediated dehydrogenation. Lactone 5a was previously prepared from deprotonated butyrolactone Li-4 and the pyridinium salt 3 (Wenkert reaction).

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关键词

indole alkaloid,vallesiachotamine lactone

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