Novel imidazobenzoxazines of the formula ##STR1## wherein X is selected from the group consisting of hydrogen, nitro, NH.sub.2 and a protected amino Z is selected from the group consisting of --COOR, and ##STR2## R is selected from the group consisting of hydrogen, alkyl of 1 to 5 carbon atoms, ##STR3## alkali metal, alkaline earth metal, magnesium, aluminum and nitrogen bases, n is 1,2 or 3, R.sub.1 and R.sub.2 individually are selected from the group consisting of hydrogen and alkyl of 1 to 5 carbon atoms and taken together with the nitrogen atom to which they are attached form a saturated heterocyclic ring of 4 to 6 carbon atoms optionally interrupted by another heteroatom which may optionally be substituted with alkyl of 1 to 5 carbon atoms and their non-toxic, pharmaceutically acceptable acid addition salts having antiallergic and bronchodilatory activity and their preparation.
该专利描述了一种新型的
咪唑苯并
噁唑类化合物,其
化学式为##STR1##其中X从氢,硝基,NH.sub.2和保护的
氨基Z从--COOR和##STR2##中选择,R从氢,1至5个碳原子的烷基,##STR3##碱
金属,碱土
金属,
镁,铝和氮碱基中选择,n为1、2或3,R.sub.1和R.sub.2单独地从氢和1至5个碳原子的烷基中选择,并与它们所附着的氮原子一起形成一个饱和的4至6个碳原子的杂环环,该环可以被另一个杂原子打断,该杂原子可以选择性地被1至5个碳原子的烷基取代,以及它们的非毒性、药学上可接受的酸盐,具有抗过敏和支气管扩张活性,以及它们的制备方法。