反应详情

A solution of 355 mg (0.606 mmol) of 4-cyano-1-(2-trimethylsilanyl-ethoxymethyl)-1H-imidazole-2-carboxylic acid [2-(4,4-dimethyl-cyclohex-1-enyl)-4-(2-dimethylsulfamoyl-ethyl)-phenyl]-amide (as prepared in the previous step) in CH2Cl2 (15 mL) was treated with EtOH (300 μL) and TFA (1.5 mL) at RT for 24 h. MeOH (20 mL) was added, and the solvents were evaporated in vacuo. The solid was triturated with acetonitrile to afford 169 mg (61%) of the title compound as a white solid: 1H-NMR (CD3CN; 400 MHz): δ 9.41 (s, 1H), 8.23 (d, 1H, J=8.0 Hz), 7.91 (s, 1H), 7.22 (d, 1H, J=8.0 Hz), 7.18 (s, 1H), 5.80-5.71 (m, 1H), 3.31-3.21 (m, 2H), 3.10-3.00 (m, 2H), 2.85 (s, 6H), 2.37-2.27 (m, 2H), 2.10-2.04 (m, 2H), 1.64-1.55 (m, 2H), 1.10 (s, 6H). Mass spectrum (ESI, m/z): Calcd. for C23H29N5O3S, 456.2 (M+H). found 456.1.

1. customthe solvents were evaporated in vacuo
2. customThe solid was triturated with acetonitrile