Trifluoroacetic acid → HCID 59759049, compound

Participants

Reaction Steps

To a solution of 2-methyl-2-[(4-{2-[(4′-nitrobiphenyl-4-yl)oxy]ethyl}-1,3-thiazol-2-yl)thio]propionic acid tert-butyl ester (3.3 g) synthesized in Example 733-1 in dichloromethane (10 mL) was added trifluoroacetic acid (30 mL), and the mixture was stirred at room temperature overnight. The reaction mixture was concentrated, poured into water, and extracted with ethyl acetate. The organic layer was washed with water and saturated brine, and dried over anhydrous magnesium sulfate. The solvent was concentrated under reduced pressure. Thereto was added diisopropyl ether, and the resulting crystals were collected by filtration to give the title compound (2.4 g) as yellow crystals.

Provenance & Evidence