| 摘要 |
A series of novel 4-amino or 4-hydrazino-2-(substituted piperazinyl)-6,7-dimethoxyquinazolines is disclosed having antihypertensive and phosphodiesterase inhibiting properties. Piperazinyl substituents include cycloalkenylcarbonyl, cycloalkylcarbonyl, and methylcycloalkylcarbonyl. A representative embodiment of the invention is 4-amino-2-[4-(cyclopentylcarbonyl)-1-piperazinyl]-6,7-dimethoxyquinazo line. |
