Cesium carbonate → 6-Chloro-N-(5-(4-(oxetan-3-yl)piperazin-1-yl)pyridin-2-yl)-[1,2,4]-triazolo[1,5-a]pyridin-8-amine

HRID 1024036ノート

反応式

HRID 1024036 の反応式
Br[C:2]1[C:3]2[N:4]([N:9]=[CH:10][N:11]=2)[CH:5]=[C:6]([Cl:8])[CH:7]=1.[O:12]1[CH2:15][CH:14]([N:16]2[CH2:21][CH2:20][N:19]([C:22]3[CH:23]=[CH:24][C:25]([NH2:28])=[N:26][CH:27]=3)[CH2:18][CH2:17]2)[CH2:13]1.C(=O)([O-])[O-].[Cs+].[Cs+].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>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].O1CCOCC1>[Cl:8][C:6]1[CH:7]=[C:2]([NH:28][C:25]2[CH:24]=[CH:23][C:22]([N:19]3[CH2:20][CH2:21][N:16]([CH:14]4[CH2:13][O:12][CH2:15]4)[CH2:17][CH2:18]3)=[CH:27][N:26]=2)[C:3]2[N:4]([N:9]=[CH:10][N:11]=2)[CH:5]=1

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 866841255-(4-(Oxetan-3-yl)piperazin-1-yl)pyridin-2-amineHCID 866841358-Bromo-6-chloro-(1,2,4)triazolo(1,5-a)pyridine

生成物 1

HCID 866841346-Chloro-N-(5-(4-(oxetan-3-yl)piperazin-1-yl)pyridin-2-yl)-[1,2,4]-triazolo[1,5-a]pyridin-8-amine収率 64.8%

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
105 °C

実験手順

A 25-mL single-neck round-bottomed flask equipped with a magnetic stirrer and reflux condenser was charged with 1,4-dioxane (8 mL), 108c (250 mg, 1.07 mmol), 5-(4-(oxetan-3-yl)piperazin-1-yl)pyridin-2-amine (252 mg, 1 mmol), and cesium carbonate (700 mg, 2 mmol). Xantphos (30 mg, 0.08 mmol) and Pd2(dba)3 (55 mg, 0.08 mmol) were added, and the reaction mixture was heated at 105° C. for 3 h. After this time the reaction was cooled to room temperature and filtered. The filtrate was concentrated under reduced pressure and the residue was purified by silica gel chromatography eluting with CH2Cl2/MeOH (20:1) to afford 108d (250 mg, 60%). MS: [M+H]+ 386.

後処理

  1. customA 25-mL single-neck round-bottomed flask equipped with a magnetic stirrer
  2. temperaturereflux condenser
  3. temperatureAfter this time the reaction was cooled to room temperature
  4. filtrationfiltered
  5. concentrationThe filtrate was concentrated under reduced pressure
  6. customthe residue was purified by silica gel chromatography
  7. washeluting with CH2Cl2/MeOH (20:1)

出典と根拠

ORDレコード
ord-e3337a395ce544a1b057cdf948eaa7bd
出典データセット
uspto-grants-2014_05
特許番号
US08722676B2

反応ノート

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