Steroidal derivatives from the roots of mandevilla pentlandiana
The steroids from the roots of Mandevilla pentlandiana were analysed. Six Δ20-steroids and four 6-keto-5α-stanols, novel as natural products, were isolated and characterized by spectroscopic methods. The plant also produces cardenolide glycosides, for which 20-hydroxysterols are known to be biosynth...
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| Autores principales: | , , , , |
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| Formato: | JOUR |
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_00319422_v30_n4_p1239_Cabrera |
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| Sumario: | The steroids from the roots of Mandevilla pentlandiana were analysed. Six Δ20-steroids and four 6-keto-5α-stanols, novel as natural products, were isolated and characterized by spectroscopic methods. The plant also produces cardenolide glycosides, for which 20-hydroxysterols are known to be biosynthetic precursors. The hydroxylated derivatives have not been detected, but Δ20-derivatives, closely related to them, may be involved in that metabolic pathway. © 1991. |
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