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2-Chloro-6-(tributylstannyl)pyrazine → 3-(6-chloropyrazin-2-yl)-5-(2,6-difluorophenyl)-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole

HRID 1529283
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HRID 1529283 반응식
[F:1][C:2]1[CH:7]=[CH:6][CH:5]=[C:4]([F:8])[C:3]=1[C:9]1[CH:10]=[C:11]2[C:15](=[CH:16][CH:17]=1)[N:14]([CH:18]1[CH2:23][CH2:22][CH2:21][CH2:20][O:19]1)[N:13]=[C:12]2I.[Cl:25][C:26]1[CH:31]=[N:30][CH:29]=[C:28]([Sn](CCCC)(CCCC)CCCC)[N:27]=1>CN(C=O)C.C(Cl)Cl.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.[Cu]I>[Cl:25][C:26]1[N:27]=[C:28]([C:12]2[C:11]3[C:15](=[CH:16][CH:17]=[C:9]([C:3]4[C:2]([F:1])=[CH:7][CH:6]=[CH:5][C:4]=4[F:8])[CH:10]=3)[N:14]([CH:18]3[CH2:23][CH2:22][CH2:21][CH2:20][O:19]3)[N:13]=2)[CH:29]=[N:30][CH:31]=1
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참가 물질

7

반응물 2

HCID 117740572-Chloro-6-(tributylstannyl)pyrazineHCID 679597535-(2,6-difluoro-phenyl)-3-iodo-1-(tetrahydro-pyran-2-yl)-1H-indazole

생성물 1

HCID 867097633-(6-chloropyrazin-2-yl)-5-(2,6-difluorophenyl)-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole수율 98%

시약·촉매·용매 4

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)촉매
HCID 178418397
HCID 178418397, 화합물
촉매
HCID 6228Dimethylformamide용매
HCID 6344Dichloromethane용매

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온도
105 °C

실험 절차

A glass microwave reaction vessel was charged with 5-(2,6-difluorophenyl)-3-iodo-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole 14 (1.00 g, 2.272 mmol) and 2-chloro-6-(tributylstannyl)pyrazine 1b (1.375 g, 3.41 mmol) in DMF (9 mL) followed by Pd(PPh3)4 (0.131 g, 0.114 mmol) and CuI (7.70 μL, 0.227 mmol). The reaction mixture was stirred and heated in an Initiator microwave reactor (Personal Chemistry, Biotage AB, Inc., Uppsala, Sweden) at 105° C. for 1 h. The resulting mixture was diluted with DCM. The organic layer was separated, washed with water, dried, filtered and concentrated. The residue was purified by silica gel chromatography (eluting with 0-15% EtOAc in Hexanes) to give 3-(6-chloropyrazin-2-yl)-5-(2,6-difluorophenyl)-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole (0.95 g, 2.22 mmol, 98% yield) as a yellow solid. MS (ESI, pos. ion) m/z: 427.0 (M+1).

후처리

  1. customA glass microwave reaction vessel
  2. customThe organic layer was separated
  3. washwashed with water
  4. customdried
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customThe residue was purified by silica gel chromatography (eluting with 0-15% EtOAc in Hexanes)

출처 및 근거

ORD 기록
ord-909bc356e6084b1b923649a49c73a2b9
출처 데이터셋
uspto-grants-2015_07
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09090593B2

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