Compounds of the general formula ##SPC1## In which R.sub.1 represents a straight or branched C.sub.1 -C.sub.6 alkyl, alkenyl or alkynyl radical, or a C.sub.1 -C.sub.3 alkyl radical substituted with phenyl, halophenyl, trifluoromethylphenyl, (lower alkoxy)phenyl, or with a 5-membered or 6-membered heterocyclic ring containing not more than two heteroatoms selected from the group consisting of oxygen, sulphur and nitrogen; R.sub.2 stands for a phenyl radical, optionally being substituted with halogen, lower alkyl, hydroxy, or lower alkoxy; X and Y stand for oxygen or sulphur; their salts and esters and methods for their preparation. The compounds of the invention possess an outstanding diuretic and saluretic activity with a very low excretion of potassium ions and a low toxicity.
一般式为##
SPC1##的化合物,其中R.sub.1代表直链或支链C.sub.1-C.sub.6烷基,烯基或炔基基团,或者被苯基,卤代苯基,三
氟甲基苯基,(较低烷氧基)苯基或含有不超过两个来自氧,
硫和氮的杂原子的5-成员或6-成员杂环环的C.sub.1-C.sub.3烷基取代的烷基基团。R.sub.2代表苯基基团,可选择性地被卤素,较低烷基,羟基或较低烷氧基取代;X和Y代表氧或
硫;它们的盐和酯以及制备它们的方法。该发明的化合物具有出色的利尿和盐利尿活性,
钾离子的排泄非常低,毒性低。