Methyl chloroformate → HCID 87274557, compound

Participants

Reaction Steps

0.15 g of the compound of Example 149 was dissolved in 10 ml of THF, 0.1 ml of triethylamine and a solution of 40 mg of methyl chloroformate in 2 ml of THF were sequentially added thereto under ice cooling, and the mixture was stirred at room temperature overnight. The reaction solution was concentrated, mixed with water, and extracted with EtOAc. The obtained organic layer was washed with brine, and dried over anhydrous sodium sulfate. The solvent was concentrated under reduced pressure, and the thus-obtained residue was recrystallized from EtOAc to obtain 0.12 g of N-[5-(4-cyclohexylpiperazin-1-yl)-4-(4-fluorophenyl)thiazol-2-yl]-4-(methoxycarbonylaminomethyl)benzamide. The obtained compound was suspended in 5 ml of EtOAc, 0.6 ml of 0.4M HCl-EtOAc solution was added thereto under ice cooling, and the mixture was stirred overnight. The thus-precipitated solid was filtered and dried to obtain 115 mg of N-[5-(4-cylcohexylpiperazin-1-yl)-4-(4-fluorophenyl)thiazol-2-yl]-4-(methoxycarbonylaminomethyl)benzamide hydrochloride.

Provenance & Evidence