Zhongguo Zhongyao Zazhi 1993-Nov
[Studies on the alkaloidal components of Polygala tenuifolia willd].
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1-Carbobutoxy-beta-carboline, N9-formylharman, 1-carboethoxy-beta-carboline, 1-carbomethoxy-beta-carboline, perlolyrine, harman and norharman were isolated from the rhizoma of Polygala lenuifolia. The structures were elucidated on the basis of spectroscopic studies and chemical evidence, 1-carbobutoxy-beta-carboline has not been seported before.