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Diisopropylethylamine → 2-(6-Chloro-1-methyl-1H-indazol-3-yl)-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid (S)-N-(tetrahydro-pyran-3-yl)-amide

HRID 246133
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HRID 246133 반응식
FC(F)(F)C(O)=O.[O:8]1[CH2:13][CH2:12][CH2:11][C@H:10]([NH2:14])[CH2:9]1.[Cl:15][C:16]1[CH:24]=[C:23]2[C:19]([C:20]([C:26]3[N:27]=[C:28]4[C:34]([C:35](O)=[O:36])=[CH:33][N:32]([CH2:38][O:39][CH2:40][CH2:41][Si:42]([CH3:45])([CH3:44])[CH3:43])[C:29]4=[N:30][CH:31]=3)=[N:21][N:22]2[CH3:25])=[CH:18][CH:17]=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>[O:8]1[CH2:13][CH2:12][CH2:11][C@H:10]([NH:14][C:35]([C:34]2[C:28]3[C:29](=[N:30][CH:31]=[C:26]([C:20]4[C:19]5[C:23](=[CH:24][C:16]([Cl:15])=[CH:17][CH:18]=5)[N:22]([CH3:25])[N:21]=4)[N:27]=3)[N:32]([CH2:38][O:39][CH2:40][CH2:41][Si:42]([CH3:45])([CH3:44])[CH3:43])[CH:33]=2)=[O:36])[CH2:9]1
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참가 물질

8

반응물 4

HCID 81531Diisopropylethylamine2회HCID 2733207O-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate2회HCID 712796712-(6-chloro-1-methyl-1H-indazol-3-yl)-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acidHCID 71280724(S)-(Tetrahydro-pyran-3-yl)amine trifluoroacetate

생성물 1

HCID 71286038
2-(6-Chloro-1-methyl-1H-indazol-3-yl)-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid (S)-N-(tetrahydro-pyran-3-yl)-amide
수율 58%

시약·촉매·용매 3

HCID 962Water용매HCID 6342Acetonitrile용매HCID 8857Ethyl Acetate용매

실험 절차

(S)-(Tetrahydro-pyran-3-yl)amine trifluoroacetate (crude from Step 4) was dissolved in acetonitrile (1.8 ml) to which was then added 2-(6-chloro-1-methyl-1H-indazol-3-yl)-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid (80 mg, 0.175 mmol), O-benzotriazol-1-yl-N,N,N′,N′-tetramethyluronium tetrafluoroborate (84 mg, 0.26 mmol) and N,N-diisopropylethylamine (0.15 ml, 0.87 mmol). The reaction was stirred at room temperature for 18 h. Additional O-benzotriazol-1-yl-N,N,N′,N′-tetramethyluronium tetrafluoroborate (50 mg, 0.16 mmol) and N,N-diisopropylethylamine (0.11 ml, 0.63 mmol) were added and stirring was continued for 24 h. Water and ethyl acetate were added. The layers were separated and the aqueous layer was extracted twice 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 (ethyl acetate/hexanes) to afford 55 mg (58%) of 2-(6-chloro-1-methyl-1H-indazol-3-yl)-5-(2-trimethylsilanylethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid (S)—N-(tetrahydro-pyran-3-yl)-amide. (M+Na)+=563.

후처리

  1. stirringstirring
  2. waitwas continued for 24 h
  3. customThe layers were separated
  4. extractionthe aqueous layer was extracted twice with ethyl acetate
  5. washThe combined organic layers were washed with sodium chloride solution
  6. dry with materialdried over sodium sulfate
  7. customAfter evaporation
  8. customthe residue was purified by silica gel chromatography (ethyl acetate/hexanes)

출처 및 근거

ORD 기록
ord-68eb81cff066444d86d0465b0438b059
출처 데이터셋
uspto-grants-2014_02
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08658646B2

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