Substituted pyrimido[5,6-b]quinoxaline-4(3H)-one-2-carboxylic acid compounds each represented by the formula ##STR1## wherein: R designates a member selected from the group consisting of hydrogen, alkyl groups having 1 to 4 carbon atoms, benzyl group, and phenyl group; and each of R.sup.1, R.sup.2, R.sup.3, and R.sup.4 independently designates a member selected from the group consisting of hydrogen, alkyl group having 1 to 4 carbon atoms, alkoxy groups having 1 to 4 carbon atoms, halogens, benzyloxy group, hydroxyl group, alkylthio groups having 1 to 4 carbon atoms, and alkylenedioxy groups having 1 to 4 carbon atoms and formed by the bonding of two of R.sup.1, R.sup.2, R.sup.3, and R.sup.4, or pharmacologically acceptable salts of said compounds.
该文献描述了由以下式子表示的每个化合物的取代
嘧啶并[5,6-b]
喹啉-4(3H)-酮-2-
羧酸化合物:
其中,R代表从氢,具有1到4个碳原子的烷基,苯甲基和苯基中选择的成员; 而R1,R2,R3和R4中的每个都独立地代表从氢,具有1到4个碳原子的烷基,具有1到4个碳原子的烷氧基,卤素,苄氧基,羟基,具有1到4个碳原子的烷
硫基,以及由R1,R2,R3和R4中的两个成员结合形成的具有1到4个碳原子的烷二氧基基团,或所述化合物的药理学上可接受的盐。