Novel benz-acyl-benzimidazole-2-derivatives

Abstract From the Canadian patent

Novel benz-acyl-benzimidazole-2-derivatives of the formula, (I), wherein R denotes carboxy esterified carboxy, hydroxy-, methyl or hydroxymethyl etharified with a lower alkanol or a di-lower alkylamino-lower alkanol or esteriried with a lower alkane carboxylic acid or with a benzoic acid R1, denotes an aliphatic, cycloaliphatic aromatic araliphatic, furyl, thienyl, pyridyl or furyl-lower alkyl thienyl-lower, alkyl or pyridyl-lower alkyl radical R2 denotes, hydrogen or an aliphatic radical and Ph denotes a 1,2phenylene group which may, in addition to the group R1-C(= O)-, be substituted by lower alkyl, lower alkoxy hydroxyl, and/or halogen, with the proviso that R1 contains at least 2 carbon …