Methyl 3-Hydroxybenzoate → Methyl 3-{3-[(2-tert-butyl-1,1-dioxido-3-oxo-5-phenyl-2,3-dihydroisothiazol-4-yl)amino]propoxy}benzoate

Participants

Reaction Steps

The title compound was prepared as described for Example 12 from methyl 3-hydroxybenzoate and 3-[(2-tert-butyl-1,1-dioxido-3-oxo-5-phenyl-2,3-dihydroisothiazol-4-yl)amino]propyl 4-methylbenzenesulfonate with a reaction time of 15 mins. The reaction mixture was evaporated and the residue purified by silica gel column chromatography (Horizons Biotage) using DCM as eluent to give the title compound (0.077 g, 54%). 1H NMR (500 MHz CDCl3): δ 7.66 (d, 1H), 7.54-7.48 (m, 3H), 4.47-7.42 (m, 3H), 7.36 (t, 1H), 7.07 (dd, 1H), 5.70 (t, 1H), 3.94-3.90 (m, 5H), 3.13-3.08 (m, 2H), 1.90-1.84 (m, 2H), 1.75 (s, 9H); 13C NMR (125 MHz CDCl3): δ 167.1, 159.8, 158.5, 135.3, 131.8, 131.7, 129.8, 129.7, 128.8, 125.3, 122.6, 120.2, 114.6, 107.3, 66.2, 61.7, 52.4, 42.3, 28.9, 27.8; Mass Spectrum M+H+ 473.

Provenance & Evidence