| 摘要 |
Compounds of formula (I): <CHEM> (in which: R<1> is a hydrogen atom, an unsubstituted alkyl group, an aryl-substituted alkyl group or a heterocyclic-substituted alkyl group; R<2> is an aryl-substituted alkyl group, a heterocyclic-substituted alkyl group or a diarylamino group; R<3> is a hydrogen atom, an unsubstituted alkyl group, an aryl-substituted alkyl group or an alkenyl group having from 3 to 6 carbon atoms; and each of the bonds represented by alpha - beta and gamma - delta is a carbon-carbon single bond or a carbon-carbon double bond;) and pharmaceutically acceptable salts and esters thereof are useful for the treatment and prophylaxis of prostatic hypertrophy. We also provide processes for their preparation. |
