This invention provides a series of novel keto sulfones of formula I ##STR1## in which the group .dbd.A-- is selected from .dbd.C(Ra)-- and .dbd.N-- and the other radicals have the meanings defined in the following specification. The compounds of formula I are leukotriene antagonists. The invention also provides pharmaceutically acceptable salts of the formula I compounds; pharmaceutical compositions containing the formula I compound, or their salts, for use in the treatment of, for example, allergic or inflammatory diseases, or endotoxic or traumatic shock conditions; and processes for the manufacture of the formula I compounds, as well as intermediates for use in such manufacture.
这项发明提供了一系列新颖的化合物,其
化学式为I ##STR1## 其中,基团 .dbd.A-- 从 .dbd.C(Ra)-- 和 .dbd.N-- 中选择,其他基团的含义在下文规定。化合物I是
白三烯拮抗剂。该发明还提供了化合物I的药学上可接受的盐;含有化合物I或其盐的药物组合物,用于治疗过敏性或炎症性疾病,或内毒素性或创伤性休克等疾病;以及用于制造化合物I的工艺,以及用于制造中间体的工艺。