3-Aminophenol → 2-ethyl-N-[3-[3-[(3-hydroxyanilino)methylidene]-2-oxo-1H-indole-6-carbonyl]phenyl]-5-methylpyrazole-3-carboxamide

Participants

Reaction Conditions

Reaction Steps

A small screw cap test tube was charged with 2-Ethyl-5-methyl-2H-pyrazole-3-carboxylic acid [3-(3-hydroxymethylene-2-oxo-2,3-dihydro-1H-indole-6-carbonyl)-phenyl]-amide (as prepared in Example 69, 100 mg, 0.240 mmol) and THF (2 mL). To the resulting solution was added 3-aminophenol (28.83 mg, 0.264 mmol), and the mixture was stirred for 24 h at 65° C. Subsequently, the reaction mixture was cooled to room temperature. Hexanes were added to the reaction mixture. The solid precipitate that formed was washed with ˜1 mL of i-prOH yielding 37% (45 mg, 0.089 mmol) of the title compound.

Provenance & Evidence