Elsevier

Phytochemistry

Volume 24, Issue 9, 1985, Pages 2023-2028
Phytochemistry

Acanthospermolides and other constituents from Blainvillea acmella

https://doi.org/10.1016/S0031-9422(00)83115-5Get rights and content

Abstract

The aerial parts of Blainvillea acmella afforded, in addition to widespread triterpenes, desacetyl ovatifolin, desacyl grazielic acid tiglate, 8β-[2-methylbutyryloxy]-9β-hydroxy-14-oxo-acanthospermolide, four new germacranolides and seven acanthospermolides. The roots gave ovatifolin, two widespread thiophenacetylenes and two daucane derivatives. Comparison of the data with those of cyclochaenin required a revision of its structure. The structures were elucidated by high field 1H NMR spectroscopy. Biogenetic relationships and taxonomic aspects are discussed briefly.

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