| 摘要 |
<p>A compound selected from those of formula (I), wherein R1a, R1b, R2, R3 are as defined in the description, and optionally, its optical isomers, N-oxide, and addition salts thereof with a pharmaceutically-acceptable acid or base, and medicinal products containing the same are useful as specific inhibitors of phosphosdiesterase-7 (PDE-7).</p> |
