1-Chloroethyl chloroformate → HCID 68429606, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of the compound obtained in step 2 (0.24 g) in dichloroethane (5 mL) was added 1-chloroethyl chloroformate (0.090 mL), and the resulting mixture was stirred at 90° C. for 2 hr. The solvent was evaporated under reduced pressure, and methanol (5 mL) was added. The mixture was stirred at 80° C. for 2 hr. The solvent was evaporated under reduced pressure, the residue was crystallized from ethanol-diisopropyl ether, and the obtained solid was purified by preparative HPLC. To the obtained residue was added 4N hydrogen chloride/ethyl acetate, and the resulting mixture was recrystallized from ethanol-diisopropyl ether to give the title compound (0.11 g, 56%) as a white powder.

Provenance & Evidence