HCID 22939389, compound → HCID 9925081, compound

Participants

Reaction Conditions

Reaction Steps

tert-Butyl 3-[2-(7-chloro-4-oxo-4H-1,3-benzothiazin-2-yl)-6-methyl-4-pyridyl]propanoate (0.90 g, 2.5 mmol) was dissolved in trifluoroacetic acid (8 ml), and the mixture was stirred at 0° C. for 2 hrs. The solvent was evaporated, and the residue was recrystallized from diisopropyl ether-ethanol to give the titled compound (0.74 g, 82%) as pale yellow crystals.

Provenance & Evidence