HCID 23023993, compound → HCID 23023940, compound

Participants

Reaction Steps

To a suspension of methyl 4-(N-methyl-N-(4-(4-nitrophenyl)-2-thiazolyl)aminomethyl)benzoate (200.0 g, 0.522 mol) obtained in Example 1(3) in a mixture of ethanol (800 ml, 4.0 v/w) and tetrahydrofuran (800 ml, 4.0 v/w) was added 10% palladium carbon (20.0 g) and the mixture was stirred overnight under a hydrogen atmosphere at 3 atm. The reaction mixture was filtered through celite and 10% palladium carbon (20.0 g) was added to the filtrate. The mixture was stirred under a hydrogen atmosphere at 3 atm for 3 hr. After celite filtration and solvent evaporation, toluene (800 ml) was added to the residue and the solvent was evaporated to give the title compound (182.5 g, yield 99.0%) as a yellow solid.

Provenance & Evidence