Abstract Metabolism of 4-hydroxytamoxifen by hepatocytes isolated from rats administered with phenobarbital and examination by TLC of the components not extractable into ethyl acetate revealed 4-hydroxytamoxifen β-glucuronide; its identity was confirmed by
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![(Z)-1-[4-(2-chloroethoxy)phenyl]-1-[4-[2,3,5,6-tetrafluoro-4-(trifluoromethyl)phenoxy]phenyl]-2-phenyl-1-butene结构式](https://image.chemsrc.com/caspic/327/103628-14-4.png)
