Hydrochloric Acid → N*4*-(4-Amino-phenyl)-6-(5-chloro-2-methoxy-phenyl)-pyrimidine-2,4-diamine
反応式
[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([O:25][CH3:26])=[C:6]([C:8]2[N:13]=[C:12]([NH2:14])[N:11]=[C:10]([NH:15][C:16]3[CH:21]=[CH:20][C:19]([N+:22]([O-])=O)=[CH:18][CH:17]=3)[CH:9]=2)[CH:7]=1.[Sn](Cl)Cl.Cl>CO>[NH2:22][C:19]1[CH:20]=[CH:21][C:16]([NH:15][C:10]2[CH:9]=[C:8]([C:6]3[CH:7]=[C:2]([Cl:1])[CH:3]=[CH:4][C:5]=3[O:25][CH3:26])[N:13]=[C:12]([NH2:14])[N:11]=2)=[CH:17][CH:18]=1参加物
5
実験手順
A mixture of the title compound of Example 11 (0.060 g, 0.16 mmol) and tin (II) chloride (0.19 g, 1.0 mmol) in a solution of 1.0 M hydrochloric acid and methanol (1:10, 15 ml) was heated under reflux for 2 hours. After evaporation of volatiles under reduced pressure, the residue was treated with aqueous sodium hydroxide solution (1.0 M, 10 ml) and stirred for 15 minutes. Filtration provided the title compound (0.035 g, 64% yield) as a white powder. 1H NMR (DMSO-d6) δ 3.84 (s, 3H, CH3), 4.83 (s, 2H, NH2), 6.08 (s, 2H, NH2), 6.54 (d, 2H, J=8.7 Hz, Ar), 6.58 (s, 1H, Ar), 7.13 (d, 1H, J=8.9 Hz, Ar), 7.25 (d, 2H, J=8.7 Hz, Ar), 7.41 (dd, 1H, J=8.9 Hz, J-2.8 Hz, Ar), 7.89 (d, 1H, J=2.8 Hz, Ar), 8.67 (s, 1H, NH).
後処理
- temperaturewas heated
- temperatureunder reflux for 2 hours
- customAfter evaporation of volatiles under reduced pressure
- additionthe residue was treated with aqueous sodium hydroxide solution (1.0 M, 10 ml)
- filtrationFiltration
出典と根拠
- ORDレコード
- ord-78222b70b6db43e0874041f8d1b94b87
- 出典データセット
- uspto-grants-2008_09
- 特許番号
- US07419984B2
反応ノート
読み込み中…