反应详情

8.9 mg of succinamic acid methyl ester, 25 mg of 2-(1H-benzotriazole-1-yl)-1,1,3,3-tetramethyluronium hexafluorophosphate (HBTU) and 12 μl diisopropyl-ethylamine were taken up in 0.4 ml dimethylformamide. Reaction mixture was stirred at room temperature for one hour and 5-(4-[1-imidazolyl]-phenylsulfonyloxy)-1H-benzimidazole-2-ylamine was added in 0.2 ml dimethylformamide. Reaction mixture was then stirred at room temperature for 24 hours. Solvent was evaporated in a Jouan model RC 10.10 centrifuge evaporator and title compound was solubilised in 0.5 ml dimethylsulfoxide for LCMS trigged purification yielding 3.9 mg of N-[5-(4-[1-imidazolyl]-phenylsulfonyloxy)-1H-benzimidazole-2-yl]-succinamic-acid-methyl ester. (LC/MS analysis: retention time=2.70 min., mass spectrum: 470.34, [M+H]+).

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