Guaiane sesquiterpenes from the gorgonian Echinogorgia flora collected in the South China Sea

RSC Advances
2022.0

Abstract

Echinoflorine (1), a new dimethylamino-substituted guaipyridine alkaloid with a novel gamma-Eactone-cyc[ohepta [c]pyridine fused skeleton, and three new guaiane sesquiterpene lactones, echinofloranolides A-C (2-4), together with eight known guaiane sesquiterpenes were isolated from the gorgonian Echinogorgia flora collected in the South China Sea. Their structures were elucidated by 1D and 2D NMR, HRESIMS, calculated ECD and DP4+ probability analyses.

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