Dimethylformamide → HCID 58314081、化合物

HRID 2036944ノート

反応式

HRID 2036944 の反応式
[Cl:1][C:2]1[CH:7]=[C:6]([NH:8][CH:9]2[CH2:14][CH2:13][N:12]([C:15]([O:17][C:18]([CH3:21])([CH3:20])[CH3:19])=[O:16])[CH2:11][CH2:10]2)[N:5]2[N:22]=[CH:23][CH:24]=[C:4]2[N:3]=1.O=P(Cl)(Cl)Cl.CN([CH:33]=[O:34])C>>[Cl:1][C:2]1[CH:7]=[C:6]([NH:8][CH:9]2[CH2:10][CH2:11][N:12]([C:15]([O:17][C:18]([CH3:21])([CH3:19])[CH3:20])=[O:16])[CH2:13][CH2:14]2)[N:5]2[N:22]=[CH:23][C:24]([CH:33]=[O:34])=[C:4]2[N:3]=1

参加物

4

反応物 3

HCID 6228DimethylformamideHCID 24813Phosphorus oxychlorideHCID 58314523Tert-butyl 4-(5-chloropyrazolo[1,5-a]pyrimidin-7-ylamino)piperidine-1-carboxylate

生成物 1

HCID 58314081HCID 58314081、化合物収率 48%

実験手順

To tert-butyl 4-(5-chloropyrazolo[1,5-a]pyrimidin-7-ylamino)piperidine-1-carboxylate (1.7 g, 4.8 mmol) in DMF (36 mL), POCl3 (7.7 mL, 82.9 mmol) was added dropwise at room temperature. After the addition was complete, the reaction was stirred for 8 hours. Then, the reaction was quenched by slow addition to ice cold 6N NaOH. The mixture was diluted with water and the solid was collected by filtration. The solid was washed several more times with water then dried under vacuum overnight. The product, tert-butyl 4-(5-chloro-3-formylpyrazolo[1,5-a]pyrimidin-7-ylamino)piperidine-1-carboxylate, was collected as a solid in 48% yield. LCMS (M+1=380)

後処理

  1. additionAfter the addition
  2. customThen, the reaction was quenched by slow addition to ice cold 6N NaOH
  3. additionThe mixture was diluted with water
  4. filtrationthe solid was collected by filtration
  5. washThe solid was washed several more times with water
  6. customthen dried under vacuum overnight
  7. customThe product, tert-butyl 4-(5-chloro-3-formylpyrazolo[1,5-a]pyrimidin-7-ylamino)piperidine-1-carboxylate, was collected as a solid in 48% yield

出典と根拠

ORDレコード
ord-c2335b4b4ca948188957d419b9c1a3d8
出典データセット
uspto-grants-2013_11
特許番号
US08575177B2

反応ノート

読み込み中…