| 摘要 |
Imidazoquinazoline derivatives represented by general formula (I) or pharmacologically acceptable salts thereof, wherein R<1> represents hydrogen, optionally substituted lower alkyl, etc.; R<2> and R<3> are the same or different and each represents hydrogen, optionally substituted lower alkyl, optionally substituted aralkyl, optionally substituted aryl, etc., or R<2> and R<3> together form an optionally substituted nitrogenous heterocycle; R<4> represents hydrogen or optionally substituted lower alkyl; X represents O or S; Y represents a single bond or O; and n is 0, 1, 2 or 3. <CHEM> |
