Water → N-Boc-D-Homophenylalanine Quinoline-3-amide

Participants

Reaction Steps

A solution of N-Boc-D-Homophenylalanine (3.0 g, 10.7 mmol) in ethyl acetate (100 mL) was treated with 3-aminoquinoline (3.08 g, 21.4 mmol) followed by dicyclohexylcarbodiimide (2.31 g, 11.2 mmol). The reaction was stirred at 25° C. for 3 hr (HPLC monitoring RP-18, 250×4 mm, water:acetonitrile:triethylamine:acetic acid=500:500:0.6:1 (mL), UV detector, λ=254 nm), filtered and the filtrate washed with 1M hydrochloric acid (25 mL), saturated solution of sodium bicarbonate (25 mL) and water (25 mL). The organic layer was dried over anhydrous sodium sulfate, filtered and concentrated to dryness to afford title compound (4.3 g) as white solid.

Provenance & Evidence