Novel pyrazolobenzoxazines of the formula ##STR1## wherein R is selected from the group consisting of hydrogen, alkyl of 1 to 5 carbon atoms, cycloalkylalkyl or 4 to 7 carbon atoms, alkenyl and alkynyl of 3 to 5 carbon atoms with the proviso that the multiple bond is not between the carbon .alpha.- and .beta.- to the nitrogen atom, aralkyl of 7 to 12 carbon atoms and aralkyl of 7 to 12 carbon atoms substituted with at least one member of the group consisting of alkyl and alkoxy of 1 to 5 carbon atoms, amino, -OH and halogen, X is selected from the group consisting of hydrogen and --CH.sub.2 --S--Alk, Alk is alkyl of 1 to 5 carbon atoms, the wavy line indicates the .alpha.- or .beta.-position and their non-toxic, pharmaceutically acceptable acid addition salts having dopaminergic agonistic, hypotensive, antihypertensive and antianoxic properties and their preparation.
公式为## STR1 ##的新型
吡唑并苯并
噁唑,其中R选自氢、1至5个碳原子的烷基、4至7个碳原子的环烷基烷基、3至5个碳原子的烯基和炔基,前提是多重键不在碳α和β与氮原子之间,7至12个碳原子的芳基烷基和7至12个碳原子的芳基烷基被至少一种选自1至5个碳原子的烷基和烷氧基,
氨基,-OH和卤素的群体取代,X选自氢和--CH.sub.2 --S--Alk,Alk为1至5个碳原子的烷基,波浪线表示α或β位置,以及其无毒、药学上可接受的酸盐,具有
多巴胺能激动、降压、抗高血压和抗缺氧性质,以及它们的制备方法。