QUINAZOLINONE DERIVATIVES, THE PREPARATION METHODS AND USES THEREOF

摘要

The quinzolinone derivatives, the preparation methods and uses thereof. The quinzolinone compounds having the structure of general formula (I), or their pharmaceutical acceptable salts. Most of these compounds have strong activities of inhibiting PDE5, and have highly selectivity of PDE 6 which is distributed on the retina. So the present compounds are expected to exhibit good safety and effectiveness and have broad uses in clinic.