Ethylenediamine → 2-(6-fluoro-1-methyl-1H-indazol-3-yl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid ((R)-2,2-difluoro-1-methyl-propyl)-amide

HRID 245912

반응식

HRID 245912 반응식
[F:1][C:2]([F:37])([CH3:36])[C@H:3]([NH:5][C:6]([C:8]1[C:16]2[C:11](=[N:12][CH:13]=[C:14]([C:17]3[C:25]4[C:20](=[CH:21][C:22]([F:26])=[CH:23][CH:24]=4)[N:19]([CH3:27])[N:18]=3)[N:15]=2)[N:10](COCC[Si](C)(C)C)[CH:9]=1)=[O:7])[CH3:4].FC(F)(F)C(O)=O.C(N)CN>ClCCl>[F:37][C:2]([F:1])([CH3:36])[C@H:3]([NH:5][C:6]([C:8]1[C:16]2[C:11](=[N:12][CH:13]=[C:14]([C:17]3[C:25]4[C:20](=[CH:21][C:22]([F:26])=[CH:23][CH:24]=4)[N:19]([CH3:27])[N:18]=3)[N:15]=2)[NH:10][CH:9]=1)=[O:7])[CH3:4]

참가 물질

5

반응물 3

HCID 3301EthylenediamineHCID 6422Trifluoroacetic acidHCID 712860802-(6-fluoro-1-methyl-1H-indazol-3-yl)-5-(2-trimethylsilanylethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid ((R)-2,2-difluoro-1-methyl-propyl)-amide

생성물 1

HCID 712858362-(6-fluoro-1-methyl-1H-indazol-3-yl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid ((R)-2,2-difluoro-1-methyl-propyl)-amide수율 61%

시약·촉매·용매 1

HCID 6344Dichloromethane용매

실험 절차

In a round-bottomed flask, 2-(6-fluoro-1-methyl-1H-indazol-3-yl)-5-(2-trimethylsilanylethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid ((R)-2,2-difluoro-1-methyl-propyl)-amide (105 mg, 197 mmol) was dissolved in dichloromethane (1 ml) and trifluoroacetic acid (0.6 ml, 7.9 mmol) was added. The reaction mixture was stirred at room temperature for 2 h then concentrated. The residue was dissolved in dichloromethane (1 ml) and ethylenediamine (0.8 ml, 11.8 mmol) was added. The reaction 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 48 mg (61%) of 2-(6-fluoro-1-methyl-1H-indazol-3-yl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid ((R)-2,2-difluoro-1-methyl-propyl)-amide as an off-white powder. MS: (M+H)+=403; 1H NMR (DMSO-d6, 300 MHz): δ (ppm) 12.85 (br. s., 1H), 9.12 (s, 1H), 8.51 (s, 1H), 8.45 (dd, J=8.9, 5.5 Hz, 1H), 8.32 (d, J=9.8 Hz, 1H), 7.69 (dd, J=9.8, 2.3 Hz, 1H), 7.10 (td, J=9.1, 1.9 Hz, 1H), 4.56-4.80 (m, 1H), 4.15 (s, 3H), 1.72 (t, J=19.3 Hz, 3H), 1.37 (d, J=6.8 Hz, 3H).

후처리

  1. concentrationthen concentrated
  2. dissolutionThe residue was dissolved in dichloromethane (1 ml)
  3. stirringThe reaction 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-167071df733948fcba15954a7b1da8a5
출처 데이터셋
uspto-grants-2014_02
특허 번호
US08658646B2

연결된 노트

불러오는 중…