申请人:Kyowa Hakko Kogyo Co., Ltd.
公开号:US05698560A1
公开(公告)日:1997-12-16
The present invention relates to imidazoquinazoline derivatives represented by formula (I): ##STR1## wherein R.sup.1 represents hydrogen, substituted or unsubstituted lower alkyl, cycloalkyl, lower alkenyl, substituted or unsubstituted aralkyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroarylalkyl, or substituted or unsubstituted heteroaryl, R.sup.2 and R.sup.3 represent independently hydrogen, substituted or unsubstituted lower alkyl, substituted or unsubstituted aralkyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroarylalkyl, or substituted or unsubstituted heteroaryl, or R.sup.2 and R.sup.3 are combined to represent a heterocyclic group containing a nitrogen atom, R.sup.4 represents hydrogen or substituted or unsubstituted lower alkyl, X represents O or S, Y represents a single bond or O, n represents 0, 1, 2, or 3, and pharmaceutically acceptable salts thereof.
本发明涉及由公式(I)表示的咪唑喹唑啉衍生物:##STR1## 其中,R.sup.1代表氢、取代或未取代的低级烷基、环烷基、低级烯基、取代或未取代的芳烷基、取代或未取代的芳基、取代或未取代的杂芳烷基或取代或未取代的杂芳基,R.sup.2和R.sup.3独立地代表氢、取代或未取代的低级烷基、取代或未取代的芳烷基、取代或未取代的芳基、取代或未取代的杂芳烷基或取代或未取代的杂芳基,或者R.sup.2和R.sup.3结合起来代表含氮原子的杂环族,R.sup.4代表氢或取代或未取代的低级烷基,X代表O或S,Y代表单键或O,n代表0、1、2或3,以及药用可接受的盐。