Process for the preparation of olopatadine (I), which comprises reacting a compound of formula (V) in the presence of a palladium catalyst to, provide a compound of formula (VI), wherein the acid protecting group is removed to provide the compound of formula (I) and if desired, transformation into its salts.
制备奥洛帕替定(I)的过程,包括在
钯催化剂的存在下,反应式(V)化合物以提供式(VI)化合物,其中酸保护基被去除以提供式(I)化合物,并且如果需要,转化为其盐。