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2-Pentanol → N-(4-fluoro-2-methoxy-5-nitrophenyl)-4-pyrazolo[1,5-a]pyridin-3-ylpyrimidin-2-amine

HRID 1842807
ノート
印刷プレビュー

反応式

HRID 1842807 の反応式
Cl[C:2]1[N:7]=[C:6]([C:8]2[CH:9]=[N:10][N:11]3[CH:16]=[CH:15][CH:14]=[CH:13][C:12]=23)[CH:5]=[CH:4][N:3]=1.[F:17][C:18]1[C:24]([N+:25]([O-:27])=[O:26])=[CH:23][C:21]([NH2:22])=[C:20]([O:28][CH3:29])[CH:19]=1.O.C1(C)C=CC(S(O)(=O)=O)=CC=1.CC(O)CCC>C(Cl)Cl>[F:17][C:18]1[C:24]([N+:25]([O-:27])=[O:26])=[CH:23][C:21]([NH:22][C:2]2[N:7]=[C:6]([C:8]3[CH:9]=[N:10][N:11]4[CH:16]=[CH:15][CH:14]=[CH:13][C:12]=34)[CH:5]=[CH:4][N:3]=2)=[C:20]([O:28][CH3:29])[CH:19]=1
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

6

反応物 4

HCID 223862-PentanolHCID 521998p-Toluenesulfonic acid monohydrateHCID 574290724-Fluoro-2-methoxy-5-nitroaniline2 回HCID 717430803-(2-Chloropyrimidin-4-YL)pyrazolo[1,5-A]pyridine2 回

生成物 1

HCID 71240784N-(4-fluoro-2-methoxy-5-nitrophenyl)-4-pyrazolo[1,5-a]pyridin-3-ylpyrimidin-2-amine収率 53%

試薬・触媒・溶媒

1
HCID 6344Dichloromethane溶媒

反応条件

温度
125 °C

実験手順

A mixture of 3-(2-chloropyrimidin-4-yl)pyrazolo[1,5-a]pyridine (Intermediate 152, 1.476 g, 6.40 mmol), 4-fluoro-2-methoxy-5-nitroaniline (Intermediate 23, 1.310 g, 7.04 mmol), p-toluenesulfonic acid monohydrate (1.339 g, 7.04 mmol) and 2-pentanol (45 mL) was heated at 125° C. for 22 h. After cooling, the mixture was filtered. The solid was washed with CH3OH, diethyl ether and then dried on the filter to give a brown solid. The solid was dissolved in CH2Cl2 and this solution was washed with sat. NaHCO3 (×3), water and brine, then dried (MgSO4) and concentrated in vacuo. The resulting residue was triturated in boiling CH3CN and then allowed to cool. The resulting solid was collected by filtration and air dried to give the title compound (1.29 g, 53%) as a brown solid; 1H NMR: 4.03 (3H, s), 7.11 (1H, td), 7.37 (1H, d), 7.41 (1H, d), 7.43-7.48 (1H, m), 8.45 (1H, d), 8.51 (1H, s), 8.58 (1H, d), 8.82-8.84 (2H, m), 9.00 (1H, d); m/z: ES+ MH+ 381.54.

後処理

  1. temperatureAfter cooling
  2. filtrationthe mixture was filtered
  3. washThe solid was washed with CH3OH, diethyl ether
  4. customdried on the
  5. filtrationfilter
  6. customto give a brown solid
  7. washthis solution was washed with sat. NaHCO3 (×3), water and brine
  8. dry with materialdried (MgSO4)
  9. concentrationconcentrated in vacuo
  10. customThe resulting residue was triturated
  11. temperatureto cool
  12. filtrationThe resulting solid was collected by filtration and air
  13. customdried

出典と根拠

ORDレコード
ord-23c82863d348400389e54d47160d4bc1
出典データセット
uspto-grants-2015_02
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08946235B2

反応ノート

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