Novel phosphonic diester derivatives represented by general formula (1) or pharmacologically acceptable salts thereof which are useful as drugs, wherein R1 represents amino, N-(lower alkyl)amino, N-(lower alkenyl)amino, etc.; R2 and R3 represent each hydrogen, lower alkyl, halogeno, lower alkoxy etc.; R4 represents hydrogen, lower alkyl or phenyl(lower alkyl); R5 and R6 represent each lower alkyl; X, Y and Z are all carbon atoms, or one of X, Y and Z is a nitrogen atom while other two are carbon atoms; and Q represents a single bond or alkylene.
通式(1)代表的新型膦酰二
酯类衍
生物或其药理上可接受的盐,可用作药物,其中R1代表
氨基、N-(低级烷基)
氨基、N-(低级烯基)
氨基等;R2和R3分别代表氢、低级烷基、卤素、低级烷氧基等;R4代表氢、低级烷基或苯基(低级烷基);R5和R6分别代表低级烷基;X、Y和Z均为碳原子,或X、Y和Z中的一个为碳原子。R4代表氢、低级烷基或苯基(低级烷基);R5和R6分别代表低级烷基;X、Y和Z均为碳原子,或X、Y和Z中的一个为氮原子,另两个为碳原子;Q代表单键或亚烷基。