1N substituted pyrazino[2,3-c]-1,2,6-thiadiazine 2,2-dioxides of formula I ##STR1## where: R.sub.1 and R.sub.2, which may be the same or different, are members of the group formed by hydrogen, straight or branched chain alkyl, aryl, trifluoromethyl, halogen, oxo, amino, carboxamido and alkoxycarbonyl; R.sub.3 is a member of the group formed by straight or branched chain alkyl, dialkylaminoethyl, aralkyl, alkoxycarbonylmethyl, carboxymethyl and hydroxyethyl; and R.sub.4 and R.sub.5, which may be the same or different, are members of the group formed by hydrogen, straight or branched chain alkyl and aralkyl, hydroxyalkyl, amino, aminoalkyl, alkylaminoalkyl; and a process for the preparation thereof.
1N取代的
嘧啶并[2,3-c]-1,2,6-噻二嗪-2,2-二氧化物的
化学式为I,其中:R.sub.1和R.sub.2,可能相同也可能不同,是由氢、直链或支链烷基、芳基、三
氟甲基、卤素、氧、
氨基、羧胺基和烷氧羰基形成的基团中的成员;R.sub.3是由直链或支链烷基、二烷基
氨基乙基、芳基烷基、烷氧羰基甲基、羧甲基和羟乙基形成的基团中的成员;R.sub.4和R.sub.5,可能相同也可能不同,是由氢、直链或支链烷基和芳基、羟基烷基、
氨基、
氨基烷基、烷基
氨基烷基形成的基团中的成员;以及其制备方法。