5-Hydroxy-2-pentanone → 6-Chloro-5-cyclopropyl-2-(4-oxopentyloxy)nicotinamide

関与物質

反応手順

To a mixture of 2,6-dichloro-5-cyclopropylnicotinamide (2.00 g, 8.66 mmol) and 5-hydroxypentan-2-one (883 mg, 8.66 mmol) in DMF (30 mL) was added and NaH (416 mg, 10.4 mmol) in portions at 0° C. The mixture was stirred at r.t. overnight, quenched by water, extracted by EtOAc. The separated organics was dried, concentrated and purified by column chromatography (Petroleum ether:EtOAc=10:1-1:1) to give 6-chloro-5-cyclopropyl-2-(4-oxopentyloxy)nicotinamide (500 mg, 19.4%).

情報源と証拠