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Cesium carbonate → 2-[2-(2,6-Dichloro-4-cyano-phenyl)-thiazolo[5,4-c]pyridine-4-ylamino]-isonicotinonitrile

HRID 2366213
ノート
印刷プレビュー

反応式

HRID 2366213 の反応式
Br[C:2]1[C:7]2[S:8][C:9]([C:11]3[C:18]([Cl: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:23]=[C:24]([CH:27]=[CH:28][N:29]=1)[C:25]#[N:26].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]([C:15]#[N:16])[CH:17]=[C:18]([Cl:19])[C:11]=1[C:9]1[S:8][C:7]2[C:2]([NH:21][C:22]3[CH:23]=[C:24]([CH:27]=[CH:28][N:29]=3)[C:25]#[N:26])=[N:3][CH:4]=[CH:5][C:6]=2[N:10]=1
参加物反応条件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 6360441,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 70155242-AminoisonicotinonitrileHCID 866689964-(4-Bromothiazolo[5,4-c]pyridin-2-yl)-3,5-dichlorobenzonitrile

生成物 1

HCID 569532942-[2-(2,6-Dichloro-4-cyano-phenyl)-thiazolo[5,4-c]pyridine-4-ylamino]-isonicotinonitrile収率 68.7%

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

Argon was bubbled through a suspension of 4-(4-bromo-thiazolo[5,4-c]pyridine-2-yl)-3,5-dichloro-benzonitrile (92 mg, 0.24 mmol), 2-amino-isonicotinonitrile (26 mg, 0.22 mmol), XantPhos (14 mg, 0.024 mmol) and cesium carbonate (195 mg, 0.6 mmol) in dioxane (2.5 ml) for 5 minutes then Pd2(dba)3 (11 mg, 0.012 mmol) was added. The reaction was heated at 70° C. for 8 hours and then cooled to room temperature. The reaction was partitioned between water (10 mL) and DCM (20 mL). The organic layer was separated, dried over Na2SO4 and concentrated to dryness under reduced pressure. The resultant residue was purified by silica gel flash chromatography eluting with 0-60% EtOAc in DCM. The resultant solid was triturated with diethyl ether, filtered, and left to air dry to give the desired compound as a yellow solid (64 mg, 63% yield). 1H NMR (400 MHz, DMSO-d6): δ 10.74 (br s, 1H), 8.50 (dd, J=5.1, 0.9 Hz, 1H), 8.44 (d, J=5.6 Hz, 1H), 8.39 (s, 2H), 8.23 (s, 1H), 7.79 (d, J=5.6 Hz, 1H), 7.38 (dd, J=5.1, 1.4 Hz, 1H). LCMS (Method C): RT=4.70 min, m/z: 423 [M+H+].

後処理

  1. temperaturecooled to room temperature
  2. customThe reaction was partitioned between water (10 mL) and DCM (20 mL)
  3. customThe organic layer was separated
  4. dry with materialdried over Na2SO4
  5. concentrationconcentrated to dryness under reduced pressure
  6. customThe resultant residue was purified by silica gel flash chromatography
  7. washeluting with 0-60% EtOAc in DCM
  8. customThe resultant solid was triturated with diethyl ether
  9. filtrationfiltered
  10. waitleft to air
  11. customdry

出典と根拠

ORDレコード
ord-85da6d0da3ae4a639723af6bda1da34a
出典データセット
uspto-grants-2014_04
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08697708B2

反応ノート

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