反応式
[F:1][C:2]1[CH:19]=[C:18]([I:20])[CH:17]=[CH:16][C:3]=1[NH:4][C:5]1[C:6]([C:13]([OH:15])=O)=[CH:7][N:8]([CH3:12])[C:9](=[O:11])[CH:10]=1.[NH2:21][O:22][CH2:23][CH2:24][OH:25].C[N+]1(C2N=C(OC)N=C(OC)N=2)CCOCC1.[Cl-]>CO.C1COCC1>[F:1][C:2]1[CH:19]=[C:18]([I:20])[CH:17]=[CH:16][C:3]=1[NH:4][C:5]1[C:6]([C:13]([NH:21][O:22][CH2:23][CH2:24][OH:25])=[O:15])=[CH:7][N:8]([CH3:12])[C:9](=[O:11])[CH:10]=1参加物
反応物 3
生成物 1
試薬・触媒・溶媒 1
実験手順
To a mixture of 4-(2-fluoro-4-iodoanilino)-1-methyl-6-oxo-1,6-dihydro-3-pyridinecarboxylic acid (130 mg, 0.34 mmol) and 2-(aminooxy)ethanol [prepared by the literature procedure: Dhanak, D.; Reese, C. B., J. Chem. Soc., Perkin Trans. 1, 1987; 2829] (52 mg, 0.67 mmol) in MeOH/THF (1:1, 20 mL) was added DMT-MM (187 mg, 0.67 mmol) and the mixture stirred at R.T. for 15 h. The reaction solvent was removed under reduced pressure and the oily residue partitioned between water (100 mL) and EtOAc (100 mL). The EtOAc fraction was then washed with water (2×100 mL) and brine (100 mL), dried (Na2SO4) and the solvent removed under reduced pressure. This afforded a cream solid which was purified by recrystallisation from EtOAc/MeOH to give 4-(2-fluoro-4-iodoanilino)-N-(2-hydroxyethoxy)-1-methyl-6-oxo-1,6-dihydro-3-pyridinecarboxamide as a white, crystalline solid (83 mg, 55%), m.p. (EtOAc/MeOH) 148-151° C. 1H NMR [(CD3)2SO, 400 MHz] δ 11.65 (v br s, 1H), 9.48 (br s, 1H), 8.13 (s, 1H), 7.74 (dd, J=10.2, 1.8 Hz, 1H), 7.58 (br d, J=8.6 Hz, 1H), 7.28 (t, J=8.5 Hz, 1H), 5.55 (s, 1H), 4.76 (v br s, 1H), 3.90 (t, J=4.9 Hz, 2H), 3.61 (t, J=4.9 Hz, 2H), 3.36 (s, 3H). Anal. Calcd for C15H15FIN3O4: C, 40.3; H, 3.4; N, 9.4. Found: C, 40.6; H, 3.6; N, 9.1.
後処理
- customprepared by the literature procedure
- customThe reaction solvent was removed under reduced pressure
- customthe oily residue partitioned between water (100 mL) and EtOAc (100 mL)
- washThe EtOAc fraction was then washed with water (2×100 mL) and brine (100 mL)
- dry with materialdried (Na2SO4)
- customthe solvent removed under reduced pressure
- customThis afforded a cream solid which
- customwas purified by recrystallisation from EtOAc/MeOH
出典と根拠
- ORDレコード
- ord-8fe8c8f6b5d444d3af8f16bb70f02452
- 出典データセット
- uspto-grants-2007_09
- 特許番号
- US07273877B2
関連ノート
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