Lithium Hydroxide → HCID 66847769、化合物

HRID 1426892ノート

反応式

HRID 1426892 の反応式
[F:1][C:2]1[CH:3]=[C:4]([C@H:10]2[CH2:14][CH2:13][CH2:12][N:11]2[C:15]2[CH:20]=[CH:19][N:18]3[N:21]=[CH:22][C:23]([C:24]([O:26]CC)=[O:25])=[C:17]3[N:16]=2)[C:5]([O:8][CH3:9])=[N:6][CH:7]=1.[Li+].[OH-]>CO>[F:1][C:2]1[CH:3]=[C:4]([C@H:10]2[CH2:14][CH2:13][CH2:12][N:11]2[C:15]2[CH:20]=[CH:19][N:18]3[N:21]=[CH:22][C:23]([C:24]([OH:26])=[O:25])=[C:17]3[N:16]=2)[C:5]([O:8][CH3:9])=[N:6][CH:7]=1

参加物

4

反応物 2

HCID 3939Lithium HydroxideHCID 86664565(R)-ethyl 5-(2-(5-fluoro-2-methoxypyridin-3-yl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidine-3-carboxylate

生成物 1

HCID 66847769HCID 66847769、化合物収率 100.4%

試薬・触媒・溶媒 1

HCID 887Methanol溶媒

反応条件

温度
70 °C

実験手順

To a suspension of (R)-ethyl 5-(2-(5-fluoro-2-methoxypyridin-3-yl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidine-3-carboxylate (0.72 g, 1.868 mmol) in MeOH (9.34 mL) was added LiOH (1 N, 3.74 mL, 3.74 mmol), and the reaction mixture was heated at 70° C. for 15 hours. After cooling, the reaction mixture was concentrated and the resulting residue diluted in water. After acidifying with citric acid, the aqueous layer was extracted with DCM. The combined organics were dried (MgSO4), filtered and concentrated to afforded (R)-5-(2-(5-fluoro-2-methoxypyridin-3-yl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidine-3-carboxylic acid (0.67 g, 100% yield) as a yellow solid. MS (apci) m/z=357.9 (M+H).

後処理

  1. temperatureAfter cooling
  2. concentrationthe reaction mixture was concentrated
  3. additionthe resulting residue diluted in water
  4. extractionthe aqueous layer was extracted with DCM
  5. dry with materialThe combined organics were dried (MgSO4)
  6. filtrationfiltered
  7. concentrationconcentrated

出典と根拠

ORDレコード
ord-acd2ca1dac4f4e6eaddc8b7571a6ce19
出典データセット
uspto-grants-2015_01
特許番号
US08933084B2

反応ノート

読み込み中…