Methanol → HCID 178524496, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of methyl 4-({2-[7-oxo-5-({[(3-{[2-(1H-1,2,4-triazol-3-yloxy)ethyl]oxy}phenyl)methyl]amino}carbonyl)-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-1-yl]ethyl}oxy)benzoate obtained in Example 47 (164 mg, 0.285 mmol), 4N aqueous sodium hydroxide solution (0.250 mL), THF (2 mL), methanol (2 mL) and water (2 mL) was stirred at 90° C. for 2 hr. The solvent was evaporated under reduced pressure, and the residue was diluted with water (20 mL), and acidified with 1N hydrochloric acid (1.5 mL). The precipitated solid was collected by filtration, and washed with water (4 mL×2) and methanol (4 mL). The obtained solid was recrystallized from methanol to give the title compound as a white powder (120 mg, 75%).

Provenance & Evidence