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Water → methyl 2-(5-hydroxy-1-methyl-1H-indazol-3-yl)-5-trityl-5H-pyrrolo[3,2-b]pyrazine-7-carboxylate

HRID 246733
ノート
印刷プレビュー

反応式

HRID 246733 の反応式
[Si]([O:8][C:9]1[CH:10]=[C:11]2[C:15](=[CH:16][CH:17]=1)[N:14]([CH3:18])[N:13]=[C:12]2[C:19]1[N:24]=[C:23]2[C:25]([C:47]([O-:49])=[O:48])=[CH:26][N:27]([C:28]([C:41]3[CH:46]=[CH:45][CH:44]=[CH:43][CH:42]=3)([C:35]3[CH:40]=[CH:39][CH:38]=[CH:37][CH:36]=3)[C:29]3[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=3)[C:22]2=[N:21][CH:20]=1)(C(C)(C)C)(C)C.[CH3:50]CCC[N+](CCCC)(CCCC)CCCC.[F-].O>C1COCC1>[OH:8][C:9]1[CH:10]=[C:11]2[C:15](=[CH:16][CH:17]=1)[N:14]([CH3:18])[N:13]=[C:12]2[C:19]1[N:24]=[C:23]2[C:25]([C:47]([O:49][CH3:50])=[O:48])=[CH:26][N:27]([C:28]([C:35]3[CH:36]=[CH:37][CH:38]=[CH:39][CH:40]=3)([C:29]3[CH:30]=[CH:31][CH:32]=[CH:33][CH:34]=3)[C:41]3[CH:42]=[CH:43][CH:44]=[CH:45][CH:46]=3)[C:22]2=[N:21][CH:20]=1
参加物実験手順後処理出典と根拠反応ノート

参加物

5

反応物 3

HCID 962WaterHCID 2724141Tetrabutylammonium FluorideHCID 866780092-(5-(tert-butyldimethylsilyloxy)-1-methyl-1H-indazol-3-yl)-5-trityl-5H-pyrrolo[3,2-b]pyrazine-7-carboxylate

生成物 1

HCID 71280393methyl 2-(5-hydroxy-1-methyl-1H-indazol-3-yl)-5-trityl-5H-pyrrolo[3,2-b]pyrazine-7-carboxylate収率 115.5%

試薬・触媒・溶媒 1

HCID 8028
Tetrahydrofuran
溶媒

実験手順

To a solution of 2-(5-(tert-butyldimethylsilyloxy)-1-methyl-1H-indazol-3-yl)-5-trityl-5H-pyrrolo[3,2-b]pyrazine-7-carboxylate (3.4 g, 4.9 mmol) in THF (25 mL) was added TBAF (6.42 mL, 12.85 mmol) at 0° C., after the addition was completed, the reaction mixture was warmed to room temperature and stirred for 0.5 hour, then H2O (25 mL) was added to the mixture extracted with EtOAc (100 mL), the organic layer was washed with H2O (100 mL), brine (100 mL), dried over Na2SO4, filtered and concentrated under reduced pressure to give methyl 2-(5-hydroxy-1-methyl-1H-indazol-3-yl)-5-trityl-5H-pyrrolo[3,2-b]pyrazine-7-carboxylate (3.2 g, >100%) as a yellow solid. LCMS: (M+H)+=566; (M+Na)+=588.

後処理

  1. additionafter the addition
  2. extractionextracted with EtOAc (100 mL)
  3. washthe organic layer was washed with H2O (100 mL), brine (100 mL)
  4. dry with materialdried over Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated under reduced pressure

出典と根拠

ORDレコード
ord-cb9f2c2ded5745b399aad805c462d4e4
出典データセット
uspto-grants-2014_02
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08658646B2

反応ノート

読み込み中…

このページの内容参加物実験手順後処理出典と根拠反応ノート