Benzoic Acid → HCID 15295811, compound

Participants

Reaction Conditions

Reaction Steps

145 mg of benzoic acid and 192 mg of carbonyldiimidazole are stirred in 1 ml of tetrahydrofuran for 2 hours at 50° C. To this is added a solution of 163 mg of 4'-[(2-n-propyl-4-methyl-6-(1-methylbenzimidazol-2-yl)-benzimidazol-1-yl)-methyl]-2-sulphamoyl-biphenyl, 0.133 ml of 1,8-diazabicyclo-[5.4.0]undec-7-ene and 1 ml of tetrahydrofuran and the mixture is maintained at 55° C. for 2.5 hours. Then 50 ml of ethyl acetate and 20 ml of 5% citric acid are added. The organic phase is dried with sodium sulphate and evaporated down. The residue obtained is chromatographed over silica gel with dichloromethane/ethanol (95:5).

Provenance & Evidence