5-Amino-1,3-dihydrobenzo[c]isothiazole 2,2-dioxide → N-(2,2-Dioxo-2,3-dihydro-1H-2lambda6-benzo[c]isothiazol-5-yl)-2-[4-(4-fluoro-benzyl)-piperidin-1-yl)-2-oxo-acetamide

Participants

Reaction Steps

The title compound is prepared from [4-(4-fluoro-benzyl) piperidin-1-yl]-oxo-acetic acid (Example 1a) and 5-amino-1,3-dihydro-2,1-benzisothiazole-2,2-dioxide according to the method described in Example 2. The filtered crystals are purified by column chromatography using Kieselgel 60 (Merck) as adsorbent and toluene:methanol=4:1 as eluent. Melting Point: 183-184° C. (isopropanol)

Provenance & Evidence