Acetic Anhydride → HCID 22727272, compound

Participants

Reaction Steps

A mixture of 6-(aminomethyl)-4-[(6-chloro-2-naphthyl)sulfonyl]-1-[methyl[1-(4-pyridinyl)-4-piperidinyl]amino]-2-piperazinone dihydrochloride (0.14 g) obtained in Example 113, triethylamine (0.16 ml) and methylene chloride (3 ml) was combined with acetic anhydride (0.043 ml) with stirring at room temperature and then stirred for 24 hours. The reaction mixture was concentrated under reduced pressure, and the residue was purified on a CHP-20 column (water→1% 1N hydrochloric acid-containing 30% aqueous solution of acetonitrile) to obtain the title compound (0.12 g) as a colorless powder.

Provenance & Evidence