Tert-butyl 4-(4-(2-amino-3-carbamoyl-5-chlorophenylcarbamoyl)phenyl)piperidine-1-carboxylate → 6-chloro-2-(4-piperidin-4-ylphenyl)-1H-benzimidazole-4-carboxamide

Participants

Reaction Steps

A solution of EXAMPLE 74A (60 mg) in acetic acid (5 mL) at reflux was stirred for 60 minutes and concentrated. The concentrate was purified by chromatography on silica gel with 10% methanol/dichloromethane. 1H NMR (DMSO-d6) δ 9.24 (s, 1H), 8.22 (d, J=7.98 Hz, 2H), 7.96 (s, 1H), 7.75-7.84 (m, 2H), 7.46 (d, J=8.29 Hz, 2H), 3.41 (d, J=12.27 Hz, 2H), 2.99-3.08 (m, 2H), 2.96 (t, J=3.53 Hz, 1H), 2.01 (d, J=12.27 Hz, 2H), 1.79-1.90 (m, 2H).

Provenance & Evidence