4-Phenoxybutan-1-amine → 2-tert-Butyl-4-[(4-phenoxybutyl)amino]-5-phenylisothiazol-3(2H)-one 1,1-dioxide

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The title compound was prepared as described for Example 24 from 1 equivalent of (4-phenoxybutyl)amine, 2-tert-butyl-4-chloro-5-phenylisothiazol-3(2H)-one 1,1-dioxide and 1 equivalent TEA at 100° C. The residue was purified by silica gel column chromatography (Horizons Biotage) using 10-20% EtOAc in hexane as eluent giving the title compound (0.172 g, 80%) as a solid. 1H NMR (500 MHz CDCl3): 1H NMR (500 MHz CDCl3): δ 7.54-7.50 (m, 2H), 7.44-7.38 (m, 3H), 7.32-7.25 (m, 2H), 6.96 (t, 1H), 6.83 (d, 2H), 5.34 (t, 1H), 3.81 (t, 2H), 2.98-2.90 (m, 2H), 1.75 (s, 9H), 1.64-1.53 (m, 4H); 13C NMR (125 MHz CDCl3): δ 159.9, 158.9, 135.2, 131.8, 129.8, 129.7, 128.8, 125.3, 121.0, 114.6, 107.2, 67.1, 61.7, 43.9, 27.9, 26.6, 26.4; Mass Spectrum: M+H+ 429.

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