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Abstract
The Amaranthaceae plant, Pfaffia glomerata, which is so-called as Brazil ginseng, is widely distributed in South American countries. Three new noroleanane-type triterpenes and four known oleanane-type triterpenes were isolated from the roots of P. glomerata. Their structures were determined by spectroscopic methods including 1D and 2D NMR experiments. Their effects on melanogenesis were also reported.
