Crotaleschenine, an Alkaloid of Crotalaria leschenaultii
An alkaloid of Crotalaria leschenaultii DC., previously reported as crispatine and now named crotaleschenine, has been re-investigated and shown to be (7β,8α-H,12α,13α,14α)-12β-hydroxy-1,2-didehydrocrotalane-11,15-dione.1 Spectroscopic data are presented and the stereochemistry determined by X-ray crystallography. The esterifying acid of crotaleschenine is identical with that of retusine , which is thereby determined as (1a,7β,8α-H,12α,13α,14α)-12β- hydroxycrotalane-11,15-dione.
2012 ◽
Vol 40
(6)
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pp. 1181-1185
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2019 ◽
Vol 14
(5)
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pp. 1934578X1984412
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