1-(6,7-Substituted-alkoxyquinoxalinyl) aminocarbonyl -4- (hetero) arylpiperazine derivatives

摘要

The present invention related to a novel urea derivative for formula (I): which is useful as an anti-cancer agent, its pharmaceutically acceptable acid addition salt or stereoisomer, and to a process for preparing the urea derivative and an anti-cancer composition comprising the same as an active ingredient.