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Cesium carbonate → [2-(2,6-Dichloro-4-fluorophenyl)-2H-pyrazolo[4,3-c]pyridin-4-yl]-(6-methylpyrimidin-4-yl)amine

HRID 626703
ノート
印刷プレビュー

反応式

HRID 626703 の反応式
Cl[C:2]1[C:7]2=[CH:8][N:9]([C:11]3[C:16]([Cl:17])=[CH:15][C:14]([F:18])=[CH:13][C:12]=3[Cl:19])[N:10]=[C:6]2[CH:5]=[CH:4][N:3]=1.[CH3:20][C:21]1[N:26]=[CH:25][N:24]=[C:23]([NH2:27])[CH:22]=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:12]1[CH:13]=[C:14]([F:18])[CH:15]=[C:16]([Cl:17])[C:11]=1[N:9]1[CH:8]=[C:7]2[C:2]([NH:27][C:23]3[CH:22]=[C:21]([CH3:20])[N:26]=[CH:25][N:24]=3)=[N:3][CH:4]=[CH:5][C:6]2=[N:10]1
参加物実験手順後処理出典と根拠反応ノート

参加物

7

反応物 4

HCID 10796Cesium carbonateHCID 5728526-Methylpyrimidin-4-amineHCID 6360441,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 866970484-Chloro-2-(2,6-dichloro-4-fluorophenyl)-2H-pyrazolo[4,3-c]pyridine

生成物 1

HCID 69671467[2-(2,6-Dichloro-4-fluorophenyl)-2H-pyrazolo[4,3-c]pyridin-4-yl]-(6-methylpyrimidin-4-yl)amine収率 62%

試薬・触媒・溶媒 2

HCID 9811564Bis(dibenzylideneacetone)palladium触媒HCID 312751,4-Dioxane溶媒

実験手順

A suspension of 4-chloro-2-(2,6-dichloro-4-fluorophenyl)-2H-pyrazolo[4,3-c]pyridine (70 mg, 0.22 mmol), 6-methylpyrimidin-4-ylamine (26 mg, 0.24 mmol), Pd2(dba)3 (10 mg, 0.011 mmol), Xantphos (12.8 mg, 0.022 mmol) and cesium carbonate (144 mg, 0.44 mmol) in dioxane (3 ml) was sealed in a microwave vial, purged with nitrogen and irradiated at 150° C. for 25 minutes in the microwave. The reaction mixture was cooled and partitioned between ethyl acetate and water. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and concentrated under reduced pressure. The resultant residue was purified by silica gel flash chromatography (50-100% ethyl acetate in cyclohexane), then further triturated with diethyl ether:pentane (1:1) to afford the title compound as a yellow solid (53 mg, 62% yield). 1H NMR (400 MHz, DMSO-d6): δ 10.65 (br s, 1H), 9.15 (s, 1H), 8.70 (s, 1H), 8.51 (s, 1H), 8.00 (d, J=6.4 Hz, 1H), 7.93 (d, J=8.4 Hz, 2H), 7.23 (d, J=6.4 Hz, 1H), 2.46 (s, 3H). LCMS (Method B): RT=2.94 min, m/z: 389 [M+H+].

後処理

  1. customwas sealed in a microwave vial
  2. custompurged with nitrogen
  3. customirradiated at 150° C. for 25 minutes in the microwave
  4. temperatureThe reaction mixture was cooled
  5. custompartitioned between ethyl acetate and water
  6. washThe organic layer was washed with brine
  7. dry with materialdried over anhydrous sodium sulfate
  8. concentrationconcentrated under reduced pressure
  9. customThe resultant residue was purified by silica gel flash chromatography (50-100% ethyl acetate in cyclohexane)
  10. customfurther triturated with diethyl ether:pentane (1:1)

出典と根拠

ORDレコード
ord-a8194cbcee5441f6b41af39b5bac0d98
出典データセット
uspto-grants-2016_04
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09309240B2

反応ノート

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