Diisopropylethylamine → 2-(6-fluoro-1-methyl-1H-indazol-3-yl)-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid ((R)-1-methyl-2-pyrazol-1-yl-ethyl)-amide

HRID 246122ノート

反応式

HRID 246122 の反応式
FC(F)(F)C(O)=O.[CH3:8][C@@H:9]([NH2:16])[CH2:10][N:11]1[CH:15]=[CH:14][CH:13]=[N:12]1.[F:17][C:18]1[CH:26]=[C:25]2[C:21]([C:22]([C:28]3[N:29]=[C:30]4[C:36]([C:37](O)=[O:38])=[CH:35][N:34]([CH2:40][O:41][CH2:42][CH2:43][Si:44]([CH3:47])([CH3:46])[CH3:45])[C:31]4=[N:32][CH:33]=3)=[N:23][N:24]2[CH3:27])=[CH:20][CH:19]=1.F[B-](F)(F)F.N1(OC(N(C)C)=[N+](C)C)C2C=CC=CC=2N=N1.C(N(CC)C(C)C)(C)C>C(#N)C.C(OCC)(=O)C.O>[CH3:8][C@@H:9]([NH:16][C:37]([C:36]1[C:30]2[C:31](=[N:32][CH:33]=[C:28]([C:22]3[C:21]4[C:25](=[CH:26][C:18]([F:17])=[CH:19][CH:20]=4)[N:24]([CH3:27])[N:23]=3)[N:29]=2)[N:34]([CH2:40][O:41][CH2:42][CH2:43][Si:44]([CH3:47])([CH3:46])[CH3:45])[CH:35]=1)=[O:38])[CH2:10][N:11]1[CH:15]=[CH:14][CH:13]=[N:12]1

参加物

8

反応物 4

HCID 81531DiisopropylethylamineHCID 2733207O-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborateHCID 712796202-(6-fluoro-1-methyl-1H-indazol-3-yl)-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acidHCID 71279935(R)-1-methyl-2-pyrazol-1-yl-ethylamine trifluoroacetate

生成物 1

HCID 712861932-(6-fluoro-1-methyl-1H-indazol-3-yl)-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid ((R)-1-methyl-2-pyrazol-1-yl-ethyl)-amide収率 81%

試薬・触媒・溶媒 3

HCID 962Water溶媒HCID 6342Acetonitrile溶媒HCID 8857Ethyl Acetate溶媒

実験手順

(R)-1-Methyl-2-pyrazol-1-yl-ethylamine trifluoroacetate (crude from Step 4) was dissolved in acetonitrile (1.8 ml) to which was then added 2-(6-fluoro-1-methyl-1H-indazol-3-yl)-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid (80 mg, 0.18 mmol), O-benzotriazol-1-yl-N,N,N′,N′-tetramethyluronium tetrafluoroborate (87 mg, 0.27 mmol) and N,N-diisopropylethylamine (0.16 ml, 0.91 mmol). The reaction was stirred at room temperature for 18 h and then water and ethyl acetate were added. The layers were separated and the aqueous layer was extracted three times with ethyl acetate. The combined organic layers were washed with sodium chloride solution and dried over sodium sulfate. After evaporation, the residue was purified by silica gel chromatography (methanol/dichloromethane) to afford 89 mg (81%) of 2-(6-fluoro-1-methyl-1H-indazol-3-yl)-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid ((R)-1-methyl-2-pyrazol-1-yl-ethyl)-amide.

後処理

  1. customThe layers were separated
  2. extractionthe aqueous layer was extracted three times with ethyl acetate
  3. washThe combined organic layers were washed with sodium chloride solution
  4. dry with materialdried over sodium sulfate
  5. customAfter evaporation
  6. customthe residue was purified by silica gel chromatography (methanol/dichloromethane)

出典と根拠

ORDレコード
ord-2761b53bce4645a1b4a027d42b1c84c6
出典データセット
uspto-grants-2014_02
特許番号
US08658646B2

反応ノート

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