Zhongguo Zhongyao Zazhi 2013-Apr
[Alkaloids from bulbs of Lycoris radiata].
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Ten Amaryllidaceae alkaloids were isolated from the bulbs of Lycoris radiata. Their structures were identified as oxovittatine (1), apohaemanthamine (2), 9-O-demethylhomolycorine N-oxide (3), incartine (4), ismine (5), 6-O-methylpretazettine (6), tazettine (7), ungeremine (8), homolycorine (9), and O-methyllycorenine (10) by spectroscopic data analyses. Compound 1 was a new natural product. Compounds 2 and 3 were reported form the genus Lycoris for the first time and compounds 4-6 were isolated form the title plant for the first time.