| 摘要 |
<p>Compound of general formula (I): wherein R?1, R2, R3, R4¿, X, Y and R5 have the meanings given herein which are useful in the curative and prophylactic treatment of a medical condition for which inhibition of a cyclic guanosine 3',5'-monophosphate phosphodiesterase (e.g. cGMP PDE5) is desired.</p> |
