Four new halimane-type diterpenes, vitetrifolins D-G, from the fruit of Vitex trifolia.

Abstract

Four new halimane-type (rearranged labdane-type) diterpenes, vitetrifolins D-G were isolated from the fruit of Vitex trifolia L. (Verbenaceae). Their chemical structures were determined on the basis of spectroscopic data as well as chemical evidence. 

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