1,1'-Thiocarbonyldiimidazole → HCID 178492695, compound

Participants

Reaction Steps

To a solution of 4-(2,3-diaminobenzoyl)amino-3-methoxy-N-methyl-N-[4-methyl-2-[5-(4-methylpiperazin-1-yl)carbonylpent-1-yloxy]phenyl]benzamide (110 mg) in anhydrous tetrahydrofuran (2 ml) was added 1,1′-thiocarbonyldiimidazole (48 mg) under nitrogen at ambient temperature and stirred at same temperature for 1 day. After being concentrated in vacuo, the residue was diluted with a mixture of chloroform and saturated sodium bicarbonate aqueous solution and the organic layer was separated. The organic layer was washed with water and brine and the solution was dried over magnesium sulfate. The solvent was evaporated in vacuo and the residue was purified by preparative thin-layer chromatography (ethyl acetate-methanol=1:1) to give 4-(2-mercapto-1H-benzimidazol-4-yl)carbonylamino-3-methoxy-N-methyl-N-[4-methyl-2-[5-(4-methylpiperazin-1-yl)carbonylpent-1-yloxy]phenyl]benzamide (96 mg) as a powder.

Provenance & Evidence