Unusual spirocyclic macroline alkaloids, nitrogenous derivatives, and a cytotoxic bisindole from Alstonia

Tetrahedron
2004.0

Abstract

The bark extract of the Malayan A. macrophylla provided several novel indoles with unprecedented carbon skeletons, an unusual nitrogenous compound, a cytotoxic bisindole, several new macroline alkaloids, in addition to other known alkaloids. The structures of the new compounds were established by spectroscopic analysis.

DOI： 10.1016/J.TET.2004.03.031

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