Water → methyl 1-[(3,4-dimethylphenyl)methyl]-2-methyl-6-(4-morpholinyl)-1H-benzimidazole-4-carboxylate

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To a solution of methyl 2-methyl-5-(4-morpholinyl)-1H-benzimidazole-7-carboxylate prepared as described in Example 26, step d (0.22 g, 0.799 mmol) in N,N-Dimethylformamide (DMF) (10 mL) was added in 4-(chloromethyl)-1,2-dimethylbenzene (0.185 g, 1.199 mmol) and potassium carbonate (0.331 g, 2.397 mmol). The resulting reaction mixture was stirred at 80° C. for 3 h. It was cooled to room temperature and poured into water (30 mL). The mixture was extracted with EtOAc (50 mL×3). The combined organic phases were washed with brine (50 mL) and concentrated. The crude material was subjected to normal phase purification (0˜40% EtOAc/Hexane) then (0˜1% MeOH/DCM) to give the product (0.24 g, 76%). MS (ES+) m/e 394.0 [M+H]+.

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