4,5-dimethyl-2-nitrofluoroacetanilide 在
镍 silica gel 、 petroleum ether ethyl acetate 作用下,
以
乙醇 为溶剂,
反应 3.0h,
以to afford 30.6 g (58%) of the title compound as a beige solid的产率得到4-benzyloxy-6-bromo-2-trifluoromethyl-benzimidazol-1-ol
The invention relates to cyclic benzimidazoles of formula 1,
in which the substituents and symbols have the meanings indicated in the description. The compounds have gastric secretion inhibiting and excellent gastric and intestinal protective action properties.
The invention relates to cyclic benzimidazoles of formula (1), (1) in which the substituents and symbols have the meanings indicated in the description. The compounds have gastric secretion inhibiting and excellent gastric and intestinal protective action properties.
The invention is directed to processes for preparing cyclic benzimidazoles, which compounds have gastric secretion inhibiting and excellent gastric and intestinal protective action properties.