Sodium Hydroxide → 2,4-Dimethyl-5-(3a,4,6,6a-tetrahydro-1H-furo[3,4-d]imidazol-2-yl)benzoic acid

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Reaction Conditions

Reaction Steps

Into around-bottom flask, was placed a solution of methyl 2,4-dimethyl-5-(3a,4,6,6a-tetrahydro-1H-furo[3,4-d]imidazol-2-yl)benzoate (compound 466.5, 100 mg, 0.330 mmol, 1.00 equiv, 90%) and sodium hydroxide (73 mg, 1.82 mmol, 5.00 equiv) in methanol/H2O (3/3 mL). The resulting solution was stirred overnight at 70° C., then concentrated in vacuum. The residue was diluted with H2O (5 mL) and the pH of the solution was adjusted to 2-3 with hydrogen chloride (12 N), then extracted with ethyl acetate (3×10 mL). The combined organics was concentrated in vacuo to obtain the title compound as a yellow solid (80.0 mg, 84%).

Provenance & Evidence