Acetic Anhydride → N-((4-Methoxyphenyl)sulfonyl)-N-(2-((1E)-2-(1-oxido-4-pyridinyl)ethenyl)phenyl)-acetamide

Participants

Reaction Steps

Using 1.54 g of the compound obtained in Example 20, the reaction was conducted in the presence of acetic anhydride at 140° C. for 10 minutes and, then, after-treated. The crystal crop was recrystallized from ethanol to provide 0.62 g of the title compound (white granules). m.p. 235-237° C. (decomp.)

Provenance & Evidence