Iodoethane → Ethyl 5-(benzyloxy)-6-(N-ethylmethylsulfonamido)-2-(4-fluorophenyl)pyrazolo[1,5-a]pyridine-3-carboxylate

HRID 219422ノート

反応式

HRID 219422 の反応式
[CH2:1]([O:8][C:9]1[C:14]([NH:15][S:16]([CH3:19])(=[O:18])=[O:17])=[CH:13][N:12]2[N:20]=[C:21]([C:28]3[CH:33]=[CH:32][C:31]([F:34])=[CH:30][CH:29]=3)[C:22]([C:23]([O:25][CH2:26][CH3:27])=[O:24])=[C:11]2[CH:10]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C(=O)([O-])[O-].[K+].[K+].[CH2:41](I)[CH3:42]>CN(C=O)C>[CH2:1]([O:8][C:9]1[C:14]([N:15]([CH2:41][CH3:42])[S:16]([CH3:19])(=[O:18])=[O:17])=[CH:13][N:12]2[N:20]=[C:21]([C:28]3[CH:29]=[CH:30][C:31]([F:34])=[CH:32][CH:33]=3)[C:22]([C:23]([O:25][CH2:26][CH3:27])=[O:24])=[C:11]2[CH:10]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

参加物

5

反応物 3

HCID 6340IodoethaneHCID 11430Potassium CarbonateHCID 67217865HCID 67217865、化合物

生成物 1

HCID 67420223Ethyl 5-(benzyloxy)-6-(N-ethylmethylsulfonamido)-2-(4-fluorophenyl)pyrazolo[1,5-a]pyridine-3-carboxylate

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

反応条件

温度
0 °C

実験手順

Ethyl 5-(benzyloxy)-2-(4-fluorophenyl)-6-(methylsulfonamido)pyrazolo[1,5-a]pyridine-3-carboxylate (0.2 g, 0.41 mmol, 1 eq) was dissolved in DMF and cooled to 0° C. Potassium carbonate (0.171 g, 1.6 mmol, 3 eq) was then added and the reaction mixture stirred for 15 minutes. Ethyl iodide (0.037 ml, 0.45 mmol, 1.1 eq) was added slowly dropwise and the resulting mixture was stirred at room temperature for 4 h. The solution was concentrated completely and diluted with water and the product was extracted with dichloromethane twice. The combined organic extracts were washed with water and concentrated yielding the desired product. Yield: 0.16 g (76 N. 1HNMR (400 MHz, DMSO-d6): δ 1.07-1.10 (t, J=7.16 Hz, 3H), 1.21-1.24 (t, 3H), 3.04 (s, 3H), 3.64 (m, 2H), 4.19-4.24 (q, J=7.04 Hz, 2H), 5.38 (s, 2H), 7.28 (t, J=8.8 Hz, 2H), 7.42-7.54 (m, 3H), 7.57-7.65 (m, 3H), 7.77-7.95 (m, 2H), 9.02 (s, 1H). LCMS: (ES+) m/z=512.0 (M+H).

後処理

  1. stirringthe resulting mixture was stirred at room temperature for 4 h
  2. concentrationThe solution was concentrated completely
  3. additiondiluted with water
  4. extractionthe product was extracted with dichloromethane twice
  5. washThe combined organic extracts were washed with water
  6. concentrationconcentrated

出典と根拠

ORDレコード
ord-2f32869826df44d3b1922e0b41d0253d
出典データセット
uspto-grants-2012_06
特許番号
US08198449B2

反応ノート

読み込み中…