Hydrochloric Acid → N-Acetyl-3-hydroxy-7-[(4-(2-propyl)phenylamino)methyl]naphthalene-2-carboxylic Acid

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Reaction Steps

3-Hydroxy-7-[(4-(2-propyl)phenylamino)methyl]naphthalene-2-carboxylic acid (25 mg, 0.07 mmol) (example 363) was suspended in tetrahydrofuran (200 μL). A solution of sodium hydrogencarbonate (23 mg, 0.27 mmol) in water (200 μL) was added followed by acetic anhydride (14 μL, 15 mg, 0.15 mmol). The reaction mixture was stirred vigorously for 65 hours at room temperature before 6 N hydrochloric acid (4 mL) was added. The precipitate was filtered off and rinsed with water (3×1 mL) to yield the title compound (21 mg). No further purification was necessary.

Provenance & Evidence