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Ethylenediamine → 2-(6-chloro-1-methyl-1H-indazol-3-yl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid (1-oxazol-2-yl-ethyl)-amide

HRID 245894
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HRID 245894 반응식
[O:1]1[CH:5]=[CH:4][N:3]=[C:2]1[CH:6]([NH:8][C:9]([C:11]1[C:19]2[C:14](=[N:15][CH:16]=[C:17]([C:20]3[C:28]4[C:23](=[CH:24][C:25]([Cl:29])=[CH:26][CH:27]=4)[N:22]([CH3:30])[N:21]=3)[N:18]=2)[N:13](COCC[Si](C)(C)C)[CH:12]=1)=[O:10])[CH3:7].FC(F)(F)C(O)=O.C(N)CN>ClCCl>[O:1]1[CH:5]=[CH:4][N:3]=[C:2]1[CH:6]([NH:8][C:9]([C:11]1[C:19]2[C:14](=[N:15][CH:16]=[C:17]([C:20]3[C:28]4[C:23](=[CH:24][C:25]([Cl:29])=[CH:26][CH:27]=4)[N:22]([CH3:30])[N:21]=3)[N:18]=2)[NH:13][CH:12]=1)=[O:10])[CH3:7]
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참가 물질

5

반응물 3

HCID 3301EthylenediamineHCID 6422Trifluoroacetic acidHCID 712881652-(6-chloro-1-methyl-1H-indazol-3-yl)-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid (1-oxazol-2-yl-ethyl)-amide

생성물 1

HCID 712881772-(6-chloro-1-methyl-1H-indazol-3-yl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid (1-oxazol-2-yl-ethyl)-amide수율 82%

시약·촉매·용매 1

HCID 6344
Dichloromethane
용매

실험 절차

In a round-bottomed flask, 2-(6-chloro-1-methyl-1H-indazol-3-yl)-5-(2-trimethylsilanylethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid (1-oxazol-2-yl-ethyl)-amide (106 mg, 0.192 mmol) was dissolved in dichloromethane (0.9 ml) and trifluoroacetic acid (0.6 ml, 7.7 mmol) was added. The reaction mixture was stirred at room temperature for 2 h then concentrated. The residue was dissolved in dichloromethane (0.9 ml) and ethylenediamine (0.8 ml, 11.7 mmol) was added. The yellow solution was stirred at room temperature for 1 h then quenched with water and diluted with ethyl acetate. The resulting suspension was filtered, washed with hot water and ethyl acetate and dried under high vacuum to provide 66 mg (82%) of 2-(6-chloro-1-methyl-1H-indazol-3-yl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid (1-oxazol-2-yl-ethyl)-amide as an off-white powder. MS: (M+H)+=422; 1H NMR (DMSO-d6, 300 MHz): δ (ppm) 12.91 (br. s., 1H), 9.13 (s, 1H), 8.66 (d, J=8.3 Hz, 1H), 8.51 (s, 1H), 8.46 (d, J=8.3 Hz, 1H), 8.11 (s, 1H), 8.00 (s, 1H), 7.23 (s, 1H), 7.15-7.21 (m, 1H), 5.47-5.61 (m, 1H), 4.18 (s, 3H), 1.66 (d, J=7.2 Hz, 3H).

후처리

  1. concentrationthen concentrated
  2. dissolutionThe residue was dissolved in dichloromethane (0.9 ml)
  3. stirringThe yellow solution was stirred at room temperature for 1 h
  4. customthen quenched with water
  5. additiondiluted with ethyl acetate
  6. filtrationThe resulting suspension was filtered
  7. washwashed with hot water and ethyl acetate
  8. customdried under high vacuum

출처 및 근거

ORD 기록
ord-070a0234308443eba71bc78ddc18de25
출처 데이터셋
uspto-grants-2014_02
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08658646B2

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