Water → HCID 22031842, compound

Participants

Reaction Steps

50 mg 2-(ethylsulfonyl)-1-(4-fluorophenyl)-6-[3-(4-fluorophenyl)-1-trityl-1H-4-pyrazolyl]-1H-benzo[d]imidazole obtained in Example 138 was dissolved in 0.5 mL tetrahydrofuran and 3 mL methanol, then 28 mg sodium hydride was added thereto, and the mixture was heated for 3 hours under reflux under nitrogen atmosphere. After the reaction mixture was cooled, water and ethyl acetate were added thereto, and the organic layer was washed with brine and dried over sodium sulfate. The solvent was evaporated, and the residue was purified by silica gel chromatography (hexane/ethyl acetate) to give 1-(4-fluorophenyl)-6-[3-(4-fluorophenyl)-1-trityl-1H-4-pyrazolyl]-2-methoxy-1H-benzo[d]imidazole. This product was subjected to deprotection of the trityl group in the same manner as in Example 84 and then purified by NAM silica gel chromatography (ethyl acetate/methanol), to give 18 mg of the title compound as colorless crystals.

Provenance & Evidence