The present invention relates to novel hydrodipyranophthalazine compounds of the formula: ##STR1## wherein R.sub.1 = hydrogen or lower alkyl, R.sub.2 = hydrogen, chlorine or bromine, R.sub.3 = hydrogen or aralkyl if R.sub.2 = hydrogen, R.sub.3 = bromine or alkoxy if R.sub.2 = bromine, R.sub.3 = chlorine or alkoxy if R.sub.2 = chlorine, or ##STR2## wherein R.sub.4 = hydrogen, halogen, trifluoromethyl, alkyl, alkoxyl, alkylenedioxy, a possibly substituted amino group, or a nitro group, The 4,4'-bond is saturated or unsaturated, and acid-addition salts of these compounds. These compounds exert a valuable activity on the cardiovascular and central nervous system.
本发明涉及一种新型的羟基二
吡喃基苯并
噻嗪化合物,其
化学式为:##STR1## 其中R.sub.1 = 氢或低级烷基,R.sub.2 = 氢、
氯或
溴,R.sub.3 = 氢或苄基,如果R.sub.2 = 氢,R.sub.3 =
溴或烷氧基,如果R.sub.2 =
溴,R.sub.3 =
氯或烷氧基,如果R.sub.2 =
氯,或##STR2## 其中R.sub.4 = 氢、卤素、三
氟甲基、烷基、烷氧基、烷二氧基、可能取代的
氨基团或硝基团,4,4'-键饱和或不饱和,以及这些化合物的酸加成盐。这些化合物对心血管和中枢神经系统具有有价值的活性。