Oxazinobenzazole derivatives represented by the formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4, which may be the same or different, each independently represents a hydrogen atom or a lower alkyl group; R.sup.5 and R.sup.6 jointly form, in conjunction with the two adjacent carbon atoms, a substituted or unsubstituted 5- or 6-membered heterocyclic ring having at least two nitrogen atoms and optionally having one or more heteroatom(s) selected from the group consisting of an oxygen atom, a sulphur atom and a nitrogen atom; and m is an integer of 0 or 1, and pharmaceutically acceptable salts thereof. The compounds of the present invention are useful as antispasmodic medicaments.
氧杂苯并唑衍
生物的
化学式(I)如下:其中R^1、R^2、R^3和R^4可以相同也可以不同,分别代表氢原子或较低的烷基基团;R^5和R^6与两个相邻的碳原子共同形成一个取代或未取代的含有至少两个氮原子并且可能含有一个或多个来自氧原子、
硫原子和氮原子的杂原子的5-或6-成员杂环,m为0或1的整数,以及其药学上可接受的盐。本发明的化合物可用作抗痉挛药物。