Cesium carbonate → 3-Chloro-5-fluoro-4-[4-(6-methyl-pyrimidin-4-ylamino)-thiazolo[5,4-c]pyridin-2-yl]-benzonitrile

HRID 2366230ノート

反応式

HRID 2366230 の反応式
Br[C:2]1[C:7]2[S:8][C:9]([C:11]3[C:18]([F:19])=[CH:17][C:14]([C:15]#[N:16])=[CH:13][C:12]=3[Cl:20])=[N:10][C:6]=2[CH:5]=[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:20][C:12]1[CH:13]=[C:14]([CH:17]=[C:18]([F:19])[C:11]=1[C:9]1[S:8][C:7]2[C:2]([NH:21][C:22]3[CH:27]=[C:26]([CH3:28])[N:25]=[CH:24][N:23]=3)=[N:3][CH:4]=[CH:5][C:6]=2[N:10]=1)[C:15]#[N:16]

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 867233154-(4-Bromothiazolo[5,4-c]pyridin-2-yl)-3-chloro-5-fluorobenzonitrile

生成物 1

HCID 569532043-Chloro-5-fluoro-4-[4-(6-methyl-pyrimidin-4-ylamino)-thiazolo[5,4-c]pyridin-2-yl]-benzonitrile収率 37.8%

試薬・触媒・溶媒 2

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

反応条件

温度
70 °C

実験手順

A mixture of 4-(4-bromo-thiazolo[5,4-c]pyridin-2-yl)-3-chloro-5-fluoro-benzonitrile (0.087 g, 0.24 mmol), 4-amino-6-methylpyrimidine (0.024 g, 0.22 mmol), Pd2(dba)3 (0.011 g, 0.01 mmol), XantPhos (0.014 g, 0.02 mmol) and cesium carbonate (0.192 g, 0.59 mmol) in dioxane (2.4 mL) was degassed with nitrogen and heated to 70° C. for 16 hours. The reaction mixture was diluted with DCM and water, and then filtered through Celite®. The layers of the filtrate were separated and the organic layer dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by silica gel flash chromatography eluting with 0-5% MeOH in DCM and triturated with acetonitrile to give the desired compound as a yellow solid (0.033 g, 35% yield). 1H NMR (300 MHz, DMSO-d6): δ 10.70 (s, 1H), 8.63 (d, J=1.2 Hz, 1H), 8.46 (d, J=5.6 Hz, 1H), 8.27 (t, J=1.3 Hz, 1H), 8.22 (dd, J=9.0, 1.4 Hz, 1H), 7.85 (d, J=5.6 Hz, 1H), 7.56 (s, 1H), 2.39 (s, 3H). LCMS (Method C): RT=3.30 min, m/z: 397 [M+H+].

後処理

  1. customwas degassed with nitrogen
  2. additionThe reaction mixture was diluted with DCM and water
  3. filtrationfiltered through Celite®
  4. customThe layers of the filtrate were separated
  5. dry with materialthe organic layer dried over Na2SO4
  6. concentrationconcentrated under reduced pressure
  7. customThe residue was purified by silica gel flash chromatography
  8. washeluting with 0-5% MeOH in DCM
  9. customtriturated with acetonitrile

出典と根拠

ORDレコード
ord-a0b80589bd1f4c16a4b77336b4ce1084
出典データセット
uspto-grants-2014_04
特許番号
US08697708B2

反応ノート

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