Water → HCID 178511940, compound

Participants

Reaction Conditions

Reaction Steps

Hunig's base (0.042 mL, 0.24 mmol) was added to a suspension of 2-[2-Hydroxy-3-(4,5,6,7-tetrahydro-3H-imidazo[4,5-c]pyridin-2-yl)-phenyl]-1H-benzoimidazole-5-carboxamidine 75 (19 mg, 0.04 mmol) and 1H-pyrazole-1-carboxamidine hydrochloride (12 mg, 0.082 mmol) in anhydrous DMF and the mixture was stirred for 12-18 h at 80° C. The mixture was poured into water (15 mL)/diethyl ether (15 mL). The aqueous layer was washed with diethyl ether (3×10 mL) and concentrated to dryness. HPLC purification (2-50% acetonitrile/60 minutes) afforded 2-[3-(5-Carbamimidoyl-1H-benzoimidazol-2-yl)-2-hydroxy-phenyl]-3,4,6,7-tetrahydro-imidazo[4,5-c]pyridine-5-carboxamidine 76 as a lyophilized yellow light powder (15.5 mg, 75% yield) (Example 298, Table 2a).

Provenance & Evidence