Abstract
Two members of a new class of C-nor-D-homo steroidal alkaloids, impranine (1). and dihydroimpranine (2). along with a new pyridyl-pregnane-type steroidal alkaloid, fetisinine (3). and a known base, korsevine (4). were isolated from the bulbs of Fritillaria imperialis. The structures of the compounds were established on the basis of spectroscopic techniques and some chemical transformations. Compounds 1 and 2 form a new class of steroidal alkaloids, named as "impranane."
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Alkaloids / biosynthesis
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Alkaloids / chemistry*
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Alkaloids / isolation & purification
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Ferric Compounds
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Fritillaria / chemistry*
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Gas Chromatography-Mass Spectrometry
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Metalloporphyrins
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Nuclear Magnetic Resonance, Biomolecular
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Steroids / biosynthesis
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Steroids / chemistry*
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Steroids / isolation & purification
Substances
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5,10,15,20-tetrakis(2,4,6-trimethyl-3,3-disulfonatophenyl)porphyrinato iron(III)
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Alkaloids
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Ferric Compounds
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Metalloporphyrins
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Steroids