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. 2003 Apr;66(4):561-3.
doi: 10.1021/np0205147.

Trisphaerolide A, a novel polyketide from the Dominican sponge Erylus trisphaerus

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Trisphaerolide A, a novel polyketide from the Dominican sponge Erylus trisphaerus

Ian van Altena et al. J Nat Prod. 2003 Apr.

Abstract

The structure of trisphaerolide A (1), a mildly cytotoxic metabolite isolated from extracts of the marine sponge Erylus trisphaerus collected in Dominica, has been elucidated by detailed analysis of spectroscopic data. Trisphaerolide A (1) has a putative polyketide biogenesis, incorporating a rare variant on the standard pathway, which involves the addition of methyl branches arising from C-2 carbons of acetate units to chain carbons that arise from C-1 of acetate units.

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