2-methoxyacetamido-beta-oxo-N-(2-thiazolyl)-3-trifluoromethyl-benzene-propanamide → HCID 178494648, compound

Participants

Reaction Conditions

Reaction Steps

5.03 g of 4-dimethylamino-pyridine were added to a solution of 16.5 g of the product of Step B in 205 ml of tetrahydrofuran and the mixture was stirred at 20° C. for 41/2 hours. The tetrahydrofuran was distilled off under reduced pressure at 40° C. and the dry residue wsa taken up in 500 ml of water. 42 ml of N hydrochloric acid were added to the mixture and the suspension was stirred at 20° C. for 30 minutes and was vacuum filtered. The product was washed with water, dried under reduced pressure at 70° C. and was crystallized from 310 ml of dioxane. The mixture was vacuum filtered at 15° C. and the product was washed with 30 ml of dioxane and dried under reduced pressure at 70° C. to obtain 13.3 g of 4-hydroxy-2-methoxymethyl-N-(2-thiazolyl)-8-trifluoromethyl-3-quinoline-carboxamide melting at 260° C.

Provenance & Evidence