Reaction Steps
N-Hydroxy-3-{3-(2-propoxy)-4-methoxyphenyl}-3-phthalimidopropionamide was prepared by the procedure of Example 1 from 3-{3-(2-propoxy)-4-methoxyphenyl}-3-phthalimidopropanoic acid (2.0 g, 5.2 mmol), carbonyldiimidazole (1.02 g, 6.29 mmol), and hydroxylamine hydrochloride (481 mg, 6.92 mmol) in tetrahydrofuran (10 mL) to afford N-hydroxy-3-{3-(2-propoxy)-4-methoxyphenyl}-3-phthalimidopropionamide as a white solid (1.42 g, 68% yield): mp, 119.0-121.0° C.; 1H NMR (DMSO-d6) δ1.24 (d, J=6.0 Hz, 3H, CH3), 1.243 (d, J=6.0 Hz, 3H, CH3), 3.12 (d, J=7.9 Hz, 2H, CH2), 3.71 (s, 3H, CH3), 4.45-4.51 (m, 1H, CH), 5.68 (t, J=7.9 Hz, 1H, NCH), 6.91 (br s, 2H, Ar), 7.05 (br s, 1H, Ar), 7.84-7.86 (m, 4H, Ar), 8.79 (br s, 1H, OH), 10.60 (1H, NH); 13C NMR (DMSO-d6) δ21.80, 21.88, 34.19, 50.13, 55.49, 70.44, 112.18, 114.97, 120.12, 123.11, 131.13, 131.21, 134.59, 146.37, 149.51, 165.99, 167.62; Anal Calcd for C21H22N2O60.9 H2O: C, 60.83; H, 5.79; N, 6.76. Found: C, 60.83; H, 5.73; N, 6.56; H2O, 4.02.
