2-(2,6-Dioxo-3-piperidyl)-4-(2-methoxyethylamino)isoindoline-1,3-dione → 2-(2,6-Dioxo-piperidin-3-yl)-4-[(pyridin-3-ylmethyl)-amino]-isoindole-1,3-dione
反応式
[N:1]1[CH:6]=[CH:5][CH:4]=[C:3]([CH2:7][NH:8][C:9]2[CH:17]=[CH:16][CH:15]=[C:11]([C:12]([OH:14])=O)[C:10]=2[C:18]([OH:20])=O)[CH:2]=1.[O:21]=[C:22]1[CH:27]([N:28]2C(=O)C3C(=CC=CC=3NCCOC)C2=O)[CH2:26][CH2:25][C:24](=[O:44])[NH:23]1>CO.C(OCC)(=O)C>[O:21]=[C:22]1[CH:27]([N:28]2[C:18](=[O:20])[C:10]3[C:11](=[CH:15][CH:16]=[CH:17][C:9]=3[NH:8][CH2:7][C:3]3[CH:2]=[N:1][CH:6]=[CH:5][CH:4]=3)[C:12]2=[O:14])[CH2:26][CH2:25][C:24](=[O:44])[NH:23]1参加物
4
実験手順
3-[(Pyridin-3-ylmethyl)-amino]-phthalic acid (3.03 mmol) was treated in the same manner as described above for the synthesis of 2-(2,6-dioxo-piperidin-3-yl)-4-(2-methoxy-ethylamino)-isoindole-1,3-dione. The solid yellow residue was slurried in 50% methanol/ethyl acetate (20 ml) for 18 h to give 0.50 g (46%) of product as a yellow solid: mp 231–233° C.; 1H NMR (DMSO-d6) δ 11.14 (s, 1H), 8.63 (s, 1H), 8.47 (s, 1H), 7.78 (d, J=7.7 Hz, 1H), 7.53 (t, J=7.8 Hz, 1H), 7.39–7.30 (m, 2H), 7.03 (t, J=6.6 Hz, 2H), 5.09 (dd, J=5.2 and 12.4 Hz, 1H), 4.61 (d, J=6.0 Hz, 2H), 2.97–2.84 (m, 1H), 2.64–2.48 (m, 2H), 2.08–2.04 (m, 1H); 13C NMR (DMSO-d6) δ 172.78, 170.05, 168.65, 167.22, 148.66, 148.27, 145.75, 136.14, 134.79, 134.54, 132.25, 123.58, 117.50, 110.92, 109.82, 48.57, 42.99, 30.96, 22.12; Anal. Calcd. For C19H16N4O4: C, 62.63; H, 4.43; N, 15.38. Found: C, 62.30; H, 4.27; N, 15.30.