反应详情

A mixture comprised of methyl 4-amino-3-fluoro-2-(2-methyl-phenylamino)-5-nitrobenzoate (from Step d, Example 1) and iodosobenzenediacetate (1.76 equiv.) in benzene is stirred at ambient temperature for 5 hours. The mixture is concentrated in vacuo and the residue purified by column chromatography to give the desired product.

1. concentrationThe mixture is concentrated in vacuo
2. customthe residue purified by column chromatography