| 摘要 |
<p>Compounds of the formula (I) : <CHEM> and pharmaceutically acceptable salts thereof are described, wherein R<1> is hydrogen or methyl, and n is one, and when R<1> is hydrogen n can also be two. These compounds have inotropic, vasodilator, broncho-dilating and platelet aggregation inhibiting properties. pharmaceutical compositions are described as are methods of use. Intermediates and processes for the preparation of the compounds of the formula (1) are described.</p> |
