Methyl iodide → HCID 58133380, compound

Participants

Reaction Steps

To a solution of 2-[2-(2,6-diethyl-4-methyl-phenyl)-acetylamino]-nicotinic acid methyl ester (Example 1.2) (460 mg) in N,N-dimethylformamide (5 ml) was added iodomethane (0.42 ml) at between −5° C. and 0° C. under a nitrogen atmosphere. The reaction mixture was stirred for 2 minutes before the addition of sodium hydride (60 mg) (60% by weight dispersion in mineral oil) in one portion at between −5° C. and 0° C. The reaction mixture was stirred at between −5° C. and 0° C. for 1 hour, and then at ambient temperature for 2 hours. The reaction mixture was partitioned between diethylether and aqueous hydrochloric acid (2M). The phases were separated and the organic phase was washed with brine, dried over magnesium sulfate and concentrated. The residue was purified by column chromatography on silica gel (eluent: 10% ethyl acetate/dichloromethane) to give 2-{[2-(2,6-diethyl-4-methyl-phenyl)-acetyl]-methyl-amino}-nicotinic acid methyl ester as a light orange oil (370 mg). 1H-NMR (400 MHz, CDCl3): 8.76 (m, 1H), 8.36-8.38 (m, 1H), 7.44-7.47 (m, 1H), 6.83 (s, 2H), 3.97 (s, 3H), 3.33 (bs, 2H), 3.27 (bs, 3H), 2.47-2.57 (m, 4H), 2.26 (bs, 3H), 1.09-1.12 (m, 6H) ppm.

Provenance & Evidence