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Trifluoroacetic acid → 5-(5-(3-Hydroxy-3-methylbut-1-ynyl)-4-(piperidin-4-ylmethylamino)pyridin-2-ylamino)pyrazine-2-carbonitrile

HRID 384711
ノート
印刷プレビュー

反応式

HRID 384711 の反応式
C(O)(C(F)(F)F)=O.[C:8]([C:10]1[N:11]=[CH:12][C:13]([NH:16][C:17]2[CH:22]=[C:21]([NH:23][CH2:24][CH:25]3[CH2:30][CH2:29][N:28](C(OC(C)(C)C)=O)[CH2:27][CH2:26]3)[C:20]([C:38]#[C:39][C:40]([OH:43])([CH3:42])[CH3:41])=[CH:19][N:18]=2)=[N:14][CH:15]=1)#[N:9]>ClCCl>[OH:43][C:40]([CH3:42])([CH3:41])[C:39]#[C:38][C:20]1[C:21]([NH:23][CH2:24][CH:25]2[CH2:26][CH2:27][NH:28][CH2:29][CH2:30]2)=[CH:22][C:17]([NH:16][C:13]2[N:14]=[CH:15][C:10]([C:8]#[N:9])=[N:11][CH:12]=2)=[N:18][CH:19]=1
参加物実験手順後処理出典と根拠反応ノート

参加物

4

反応物 2

HCID 6422Trifluoroacetic acidHCID 59613530tert-Butyl 4-((2-(5-cyanopyrazin-2-ylamino)-5-(3-hydroxy-3-methylbut-1-ynyl)pyridin-4-ylamino)methyl)piperidine-1-carboxylate

生成物 1

HCID 596133865-(5-(3-Hydroxy-3-methylbut-1-ynyl)-4-(piperidin-4-ylmethylamino)pyridin-2-ylamino)pyrazine-2-carbonitrile収率 50%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

実験手順

TFA (0.2 mL) was added at room temperature to a solution of tert-butyl 4-((2-(5-cyanopyrazin-2-ylamino)-5-(3-hydroxy-3-methylbut-1-ynyl)pyridin-4-ylamino)methyl)piperidine-1-carboxylate (0.020 g, 0.041 mmol) dissolved in dichloromethane (2 mL). The reaction mixture was stirred for 20 min. Solvent was removed in vacuo and the crude mixture was purified by ion exchange on SCX-II acidic resin (500 mg), eluting with methanol then 2M ammonia-methanol. The basic fractions were combined and solvent was removed in vacuo. The crude product was purified by preparative thin layer chromatography, eluting with methanol/dichloromethane (1/19), to give the title compound as a yellow solid (0.008 g, 50%).

後処理

  1. customSolvent was removed in vacuo
  2. customthe crude mixture was purified by ion exchange on SCX-II acidic resin (500 mg)
  3. washeluting with methanol
  4. customsolvent was removed in vacuo
  5. customThe crude product was purified by preparative thin layer chromatography
  6. washeluting with methanol/dichloromethane (1/19)

出典と根拠

ORDレコード
ord-3fd9a182b05f4c0ebd28ac1143b6ec18
出典データセット
uspto-grants-2013_02
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08367658B2

反応ノート

読み込み中…

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