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A new cytotoxic stigmastane, 7beta-hydroxy-4,22-stigmastadien-3-one (3), together with two known cytotoxic stigmastanes (1, 2) and a norisoprenoid (4), have been isolated from the aquatic plant pistia stratiotes. The structure determination was accomplished by spectroscopic methods.


S N Ayyad. A new cytotoxic stigmastane steroid from Pistia stratiotes. Die Pharmazie. 2002 Mar;57(3):212-4

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PMID: 11939171

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