反应详情

To a solution of 2-methyl-6-morpholino-1-(naphthalen-1-ylmethyl)-1H-benzo[d]imidazol-4-amine (186 mg), Et3N (0.15 mL) and DCM (20 mL) was added a solution of methanesulfonyl chloride (69 mg) in DCM at 0° C. and then the mixture was stirred at room temperature for 1 h. The mixture was diluted with DCM and washed with brine, dried over anhydrous Na2SO4, filtered and concentrated in-vacuo. The residue was then purified by silica gel chromatography eluted with MeOH:DCM=1:30 to afford the desired product as a solid (180 mg, 80%). 1H NMR (300 MHz, DMSO-d6) δ ppm 2.40 (s, 3H), 2.98 (t, 4H, J=4.8 Hz), 3.21 (s, 3H), 3.68 (t, 4H, J=4.8 Hz), 5.96 (s, 2H), 6.37 (d, 1H, J=8.1 Hz), 6.80 (s, 2H), 7.35 (t, 1H, J=8.1 Hz), 7.60-7.71 (m, 2H), 7.85 (d, 1H, J=8.1 Hz), 8.01 (d, 1H, J=8.1 Hz), 8.24 (d, 1H, J=8.1 Hz), 9.49 (br s, 1H); LC-MS: m/e=451 [M+1]+.

1. washwashed with brine
2. dry with materialdried over anhydrous Na2SO4
3. filtrationfiltered
4. concentrationconcentrated in-vacuo
5. customThe residue was then purified by silica gel chromatography
6. washeluted with MeOH