Water → HCID 54270959, compound

Participants

Reaction Steps

To a solution of 3-isopropyl-6-fluoro-5-methoxycarbonylamino -2(3H)-benzothiazolone (2.8 g) in N,N-dimethylformamide (10 g), sodium hydride (0.4 g) and ethyl 3-amino-4,4,4-trifluorocrotonate (0.9 g) were added, and the resultant mixture was heated under reflux for 3 hours. After cooling, the reaction mixture was poured into water and extracted with ethyl acetate. The organic layer was concentrated, and the residue was purified by column chromatography to give 1-[3-isopropyl-6-fluoro-2(3H) -benzothiazolon -5-yl]-4-trifluoromethyl-1,2,3,6-tetrahydropyrimidine -2,6-dione (0.8 g).

Provenance & Evidence