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solanidine/fritillaria
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Two 22S-solanidine-type steroidal alkaloids from Fritillaria anhuiensis.
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Phytochemical investigation of the fresh bulbs of Fritillaria anhuiensis S. C. Chen et S. E. Yin, resulted in the isolation of a known steroidal alkaloid solanidine of (22S,25S)-solanid-5-en-3beta-ol (1), which has never yet been found as a natural substance, and of a new steroidal alkaloid
[Studies on alkaloid constituents of Fritillaria yuminensis].
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Twelve alkaloids were isolated from the bulbs of Fritillaria yuminensis by column chromatography over silica gel, ODS, and Sephadex LH-20, as well as RP-HPLC. Their structures were identified mainly by NMR and MS analyses as yubeinine(1), imperialine(2), delavinone(3), tortifoline(4),
Simultaneous determination of seven major isosteroidal alkaloids in bulbs of Fritillaria by gas chromatography.
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The present paper describes the development of a most simple, sensitive, and specific gas chromatographic method to date, for the direct determination of seven major bioactive isosteroidal alkaloids, namely ebeiedine, ebeiedinone, ebeienine, hupehenine, isoverticine, verticine, verticinone and
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