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methyl 1-((2'-cyano-[1,1'-biphenyl]-4-yl)methyl)-2-ethoxy-1H-benzo[d]imidazole-7-carboxylate; CAS No.: 139481-44-0; This methyl benzimidazole carboxylate exemplifies ChemShuttle s building blocks for gastrointestinal therapeutics. The 2-ethoxy group and biphenylmethyl substitution pattern optimize proton pump inhibition. Our synthesis employs Pd-catalyzed C-N couplings for biphenyl integration and regioselective benzimidazole annulation. The 7-carboxylate position allows further derivatization for PK/PD optimization in antiulcer drug development.