Diisopropylethylamine → 2-{[(4-Cyano-2-methoxycarbonyl-benzyl)-(1-pyridin-2-yl-ethyl)amino]-methyl}-benzoimidazole-1-carboxylic acid tert-butyl ester

Participants

Reaction Steps

Using General Procedure A: Reaction of 2-bromomethyl-5-cyano-benzoic acid methyl ester and 2-[(1-pyridin-2-yl-ethylamino)-methyl]-2,3-dihydro-benzoimidazole-1-carboxylic acid tert-butyl ester in CH3CN with DIPEA, KI, and DMAP gave 2-{[(4-cyano-2-methoxycarbonyl-benzyl)-(1-pyridin-2-yl-ethyl)amino]-methyl}-benzoimidazole-1-carboxylic acid tert-butyl ester as a light yellow solid. 1H NMR (CDCl3) δ 1.56-1.59 (m, 3H), 1.71 (s, 9H), 3.86 (s, 3H), 4.23 (s, 1H), 4.28-4.30 (m, 2H), 4.40-4.47 (m, 2H), 7.10-7.16 (m, 1H), 7.24-7.32 (m, 3H), 7.42-7.46 (m, 1H), 7.51-7.66 (m, 2H), 7.71-7.76 (m, 1H), 7.82 (d, 1H, J=1.7 Hz), 7.92 (d, 1H, J=8.0 Hz), 8.53 (d, 1H, J=4.8 Hz).

Provenance & Evidence