HCID 67094363, compound → HCID 15983106, compound

Participants

Reaction Steps

Acetic acid 6-hydroxy-2-methyl-7-nitro-3-oxo-2,3-dihydro-benzo[d]isothiazol-5-yl ester (0.046 g) in methanol-HCl (14:1, 7 ml) was heated at 60° C. for 3 hours. The mixture was evaporated to dryness. The crude product was purified by flash chromatography using ethyl acetate as an eluent and followed by crystallization from isopropanol-methanol.

Provenance & Evidence