Ethyl 2-chloroacetoacetate → HCID 22628040, compound

Participants

Reaction Steps

A mixture of 6-tert-butoxycarbonylaminothionicotinamide (506 mg), ethyl 2-chloro-acetoacetate (492 mg) and sodium acetate (252 mg) in ethanol (20 ml) was heated for 2 hours under reflux, and to the mixture were added sodium hydrogen carbonate aqueous solution and water. The precipitated crystals were collected by filtration, and the crystals were successively washed with water, ethanol and ether to give ethyl 2-(6-tert-butoxycarbonylamino-3-pyridyl)-4-methyl-5-thiazolecarboxylate (200 mg).

Provenance & Evidence