NOVEL BENZIMIDAZOLE DERIVATIVES

摘要

Novel benzimidazole derivatives represented by general formula (I), a process for producing the same, and drugs containing as the active ingredient at least one of these compounds, in particular, preventives and/or remedies for diseases exhibiting acidophilia, bronchial asthma and allergic diseases, wherein R<2> represents cyano, hydroxymethyl, 2-(2-imidazolyl)ethenyl, phenyl substituted by one or two -COOR<3> groups, -COOR<3> or -CONR<4>R<5>; A represents a group selected from the group consisting of -CO-, -CH(OR<8>)-, -CH2O-, -CH(NHR<9>)CH2-, -CH=CH- and -CH2CH2-; W represents -CH2- or a single bond; Q represents phenyl optionally substituted by a hydroxyl group; and n is from 0 to 2. <CHEM>