Chemistry of the Coprosma genus. Part XIV. Constituents of five New Zealand species
Abstract
The anthraquinone pigments of the barks of Coprosma tenuicaulis, C. linariifolia, C. rotundifolia, and C. propinqua and the heartwood of C. robusta are reported. C. linariifolia contains a new anthragallol 2-methyl ether 3-glycoside and C. rotundifolia a rubiadin 3-glycoside. A minor anthraquinone of C. lucida previously considered to be soranjidiol has been identified as lucidin. The presence of the coumarin scopoletin has been shown in the barks of a number of Coprosma species.