2'-Aminoacetophenone → 9-Bromo-5-(o-acetylphenylcarbamoylmethyl)-6,7-dihydro-1H, 5H-pyrido[1,2,3-de]quinoxaline-2,3-dione
反応式
[Br:1][C:2]1[CH:3]=[C:4]2[CH2:16][CH2:15][CH:14]([CH2:17][C:18](O)=[O:19])[N:6]3[C:7](=[O:13])[C:8](=[O:12])[NH:9][C:10]([CH:11]=1)=[C:5]23.[C:21]([C:24]1[CH:30]=[CH:29][CH:28]=[CH:27][C:25]=1[NH2:26])(=[O:23])[CH3:22]>C(O)(=O)C.C(OCC)(=O)C>[Br:1][C:2]1[CH:3]=[C:4]2[CH2:16][CH2:15][CH:14]([CH2:17][C:18](=[O:19])[NH:26][C:25]3[CH:27]=[CH:28][CH:29]=[CH:30][C:24]=3[C:21](=[O:23])[CH3:22])[N:6]3[C:7](=[O:13])[C:8](=[O:12])[NH:9][C:10]([CH:11]=1)=[C:5]23参加物
4
実験手順
A procedure similar to that described in Example 51 was carried out with 9-bromo-5-carboxymethyl-6,7-dihydro-1H, 5H-pyrido[1,2,3-de]quinoxaline-2,3-dione (170 mg, 1 mmol) and o-acetylaniline (90 mg, 0.67 mmol) to give 50 mg of the title compound (21%) after chromatography of the crude product on a silica gel column with 1% acetic acid/ethyl acetate as an eluent: mp>270° C.; 1H NMR (270 MHz, DMSO-d6) δ12.06 (bs, 1H), 11.12 (s, 1H), 8.20 (bd, 1H, J=8.1 Hz), 7.96 (d, 2H, J=8.1 Hz), 7.60 (t, 1H, J=8.1 Hz), 7.23 (t, 1H, J=8.1 Hz), 7.23 (d, 1H, J =2 Hz), 7.17 (d, 1H, J=2 Hz), 5.14~5.26 (m, 1H), 3.04 (ddd, 1H, J=17.1, 13.5, 4.5 Hz), 2.83 (dm, 1H, J=17.1 Hz), 2.64~2.76 (m, 2H), 2.60 (s, 3H), 2.16 (dm, 1H, J=13.5 Hz), 1.82~1.97 (m, 1H).