Compounds of structure (I)
where Y is OH, X₁ is C₁-₄alkoxy, X₂ is C₁-₄alkoxy, halogen, CF₃ or C₁-₄alkyl, processes for their preparation, compositions containing them and their use as β-adrenergic receptor antagonists.
结构(I)的化合物,其中Y为OH,X₁为C₁-₄烷氧基,X₂为C₁-₄烷氧基、卤素、CF₃或C₁-₄烷基,其制备方法,含有它们的组合物以及它们作为β-
肾上腺素受体拮抗剂的用途。