Water → (1-{2-[6-(4-{2-[1-(2-Methoxycarbonylamino-3-methyl-butyryl)-pyrrolidin-2-yl]-3H-imidazol-4-ylethynyl}-phenyl)-1H-benzoimidazol-2-yl]-pyrrolidine-1-carbonyl}-2-methyl-propyl)-carbamic acid methyl ester

Participants

Reaction Conditions

Reaction Steps

{1-[2-(5-Ethynyl-1H-imidazol-2-yl)-pyrrolidine-1-carbonyl]-2-methyl-propyl}-carbamic acid methyl ester (62 mg, 0.195 mmol), (1-{2-[6-(4-Bromo-phenyl)-1-H-benzoimidazol-2-yl]-pyrrolidine-1-carbonyl}-2-methyl-propyl)-carbamic acid methyl ester (73 mg, 0.146 mmol), Pd(PPh3)4 (11 mg, 0.00975 mmol), CuI (4 mg, 0.0195 mmol) and triethylamine (0.271 mL, 1.95 mmol) were suspended in DMF (2 mL). The reaction mixture was stirred at 80° C. for 3 hours then 1 mL of water was added and the mixture was purified by reverse phase preparative HPLC, giving (1-{2-[6-(4-{2-[1-(2-Methoxycarbonylamino-3-methyl-butyryl)-pyrrolidin-2-yl]-3H-imidazol-4-ylethynyl}-phenyl)-1H-benzoimidazol-2-yl]-pyrrolidine-1-carbonyl}-2-methyl-propyl)-carbamic acid methyl ester (12 mg, 11%). 1H NMR (MeOH-d4, 400 MHz) 7.66-7.64 (m, 2H), 7.59-7.50 (m, 4H), 7.24 (s, 1H), 6.98 (m, 1H), 5.28 (m, 1H), 5.12 (m, 1H), 4.28-4.19 (m, 2H), 4.04-3.82 (m, 4H), 3.66 (s, 3H), 3.65 (s, 3H), 2.43-2.01 (m, 10H), 0.99-0.87 (m, 12H); MS (ESI) m/z 737 [M+H]+.

Provenance & Evidence