Reaction Steps
2-[1-(3-Ethoxy-4-methoxyphenyl)-2-(N,N-dimethylaminosulfonyl)ethyl]isoindolin-1-one was prepared by the procedure of Example 3 from 1-(3-ethoxy-4-methoxyphenyl)-2-(N,N-dimethylaminosulfonyl)ethylamine (150 mg, 0.49 mmol) and 1,2-phthalic dicarboxaldehyde (67 mg, 0.49 mmol) in acetic acid (2 mL). The product was obtained as a solid (142 mg, 69% yield): mp, 165.0-167.0° C.; 1H NMR (CDCl3) δ 1.45 (t, J=7 Hz, 3H, CH3), 2.86 (s, 6H, N(CH3)2), 3.58 (dd, J=4.7, 14.4 Hz, 1H, CHH), 3.86 (s, 3H, CH3), 4.08 (q, J=7 Hz, 2H, CH2), 4.30 (d, J=16.5 Hz, 1H, NCHH), 4.33 (dd, J=9, 14.4 Hz, 1H, CHH), 4.49 (d, J=16.5 Hz, 1H, NCHH), 5.60 (dd, J=4.7, 9.5 Hz, 1H, NCH), 6.83 (d, J=8.3 Hz, 1H, Ar), 6.98 (dd, J=2, 8.3 Hz, 1H, Ar), 7.06 (d, J=2 Hz, 1H, Ar), 7.37-7.56 (m, 3H, Ar), 7.84 (d, J=7 Hz, 1H, Ar), 13C NMR (CDCl3) δ 14.69, 37.31, 48.64, 49.73, 52.91, 52.95, 64.54, 111.31, 112.46, 119.29, 122.76, 123.72, 128.03, 130.67, 131.55, 132.75, 141.26, 148.73, 149.39, 168.63; Anal Calcd for C21H26NO5S: C, 60.27; H, 6.26; N, 6.69. Found: C, 60.04; H, 6,10: N, 6.62.
