Cesium carbonate → 3-Chloro-2-[7-fluoro-4-(6-methylpyrimidin-4-ylamino)-pyrazolo[4,3-c]pyridin-2-yl]-benzonitrile

HRID 626756노트

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HRID 626756 반응식
Br[C:2]1[C:7]2=[CH:8][N:9]([C:11]3[C:18]([Cl:19])=[CH:17][CH:16]=[CH:15][C:12]=3[C:13]#[N:14])[N:10]=[C:6]2[C:5]([F:20])=[CH:4][N:3]=1.[NH2:21][C:22]1[CH:27]=[C:26]([CH3:28])[N:25]=[CH:24][N:23]=1.CC1(C)C2C(=C(P(C3C=CC=CC=3)C3C=CC=CC=3)C=CC=2)OC2C(P(C3C=CC=CC=3)C3C=CC=CC=3)=CC=CC1=2.C(=O)([O-])[O-].[Cs+].[Cs+]>O1CCOCC1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd]>[Cl:19][C:18]1[C:11]([N:9]2[CH:8]=[C:7]3[C:2]([NH:21][C:22]4[CH:27]=[C:26]([CH3:28])[N:25]=[CH:24][N:23]=4)=[N:3][CH:4]=[C:5]([F:20])[C:6]3=[N:10]2)=[C:12]([CH:15]=[CH:16][CH:17]=1)[C:13]#[N:14]

참가 물질

7

반응물 4

HCID 10796Cesium carbonateHCID 5728526-Methylpyrimidin-4-amineHCID 6360441,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 866970642-(4-Bromo-7-fluoropyrazolo[4,3-c]pyridin-2-yl)-3-chlorobenzonitrile

생성물 1

HCID 696718283-Chloro-2-[7-fluoro-4-(6-methylpyrimidin-4-ylamino)-pyrazolo[4,3-c]pyridin-2-yl]-benzonitrile수율 47.4%

시약·촉매·용매 2

HCID 9811564Bis(dibenzylideneacetone)palladium촉매HCID 312751,4-Dioxane용매

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온도
150 °C

실험 절차

A mixture of 2-(4-bromo-7-fluoropyrazolo[4,3-c]pyridin-2-yl)-3-chlorobenzonitrile (158 mg, 0.45 mmol), 4-amino-6-methylpyrimidine (55 mg, 0.5 mmol), Pd2(dba)3 (10 mg, 0.011 mmol), Xantphos (26 mg, 0.045 mmol) and cesium carbonate (293 mg, 0.9 mmol) in dioxane (3 mL) was de-gassed and purged with nitrogen and the reaction mixture was heated at 150° C. in the microwave for 30 minutes. The resultant mixture was partitioned between ethyl acetate and water. The layers were separated and the organic layer was washed with brine, dried over anhydrous sodium sulfate, filtered and concentrated under reduced pressure. The residue was purified by silica gel flash chromatography (80-90% ethyl acetate in cyclohexane) to afford the title compound as a beige solid (81 mg, 47% yield). 1H NMR (400 MHz, DMSO-d6): δ 10.83 (s, 1H), 9.48 (d, J=2.6 Hz, 1H), 8.71 (d, J=1.2 Hz, 1H), 8.38 (s, 1H), 8.23-8.20 (m, 2H), 8.03 (d, J=3.5 Hz, 1H), 7.92 (t, J=8.1 Hz, 1H), 2.46 (s, 3H). LCMS (Method B): RT=3.04 min, m/z: 380 [M+H+].

후처리

  1. customwas de-gassed
  2. custompurged with nitrogen
  3. customThe resultant mixture was partitioned between ethyl acetate and water
  4. customThe layers were separated
  5. washthe organic layer was washed with brine
  6. dry with materialdried over anhydrous sodium sulfate
  7. filtrationfiltered
  8. concentrationconcentrated under reduced pressure
  9. customThe residue was purified by silica gel flash chromatography (80-90% ethyl acetate in cyclohexane)

출처 및 근거

ORD 기록
ord-9bea88cf43204d928c9aae2734ed8de4
출처 데이터셋
uspto-grants-2016_04
특허 번호
US09309240B2

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