Tributylphosphine → 4-((5-Chloropyridin-2-yl)methoxy)-1-(2-cyclopropyl-3-methylimidazo[1,2-a]pyridin-6-yl)pyridin-2(1H)-one

HRID 2202873ノート

反応式

HRID 2202873 の反応式
[CH:1]1([C:4]2[N:5]=[C:6]3[CH:11]=[CH:10][C:9]([N:12]4[CH:17]=[CH:16][C:15]([OH:18])=[CH:14][C:13]4=[O:19])=[CH:8][N:7]3[C:20]=2[CH3:21])[CH2:3][CH2:2]1.[Cl:22][C:23]1[CH:24]=[CH:25][C:26]([CH2:29]O)=[N:27][CH:28]=1.C(P(CCCC)CCCC)CCC.N(C(N1CCCCC1)=O)=NC(N1CCCCC1)=O>C1COCC1.CCOC(C)=O>[Cl:22][C:23]1[CH:24]=[CH:25][C:26]([CH2:29][O:18][C:15]2[CH:16]=[CH:17][N:12]([C:9]3[CH:10]=[CH:11][C:6]4[N:7]([C:20]([CH3:21])=[C:4]([CH:1]5[CH2:3][CH2:2]5)[N:5]=4)[CH:8]=3)[C:13](=[O:19])[CH:14]=2)=[N:27][CH:28]=1

参加物

7

反応物 4

HCID 13831TributylphosphineHCID 730421,1'-(Azodicarbonyl)dipiperidineHCID 20537893(5-Chloropyridin-2-yl)methanolHCID 896902811-(2-Cyclopropyl-3-methylimidazo[1,2-a]pyridin-6-yl)-4-hydroxypyridin-2(1H)-one

生成物 1

HCID 896903964-((5-Chloropyridin-2-yl)methoxy)-1-(2-cyclopropyl-3-methylimidazo[1,2-a]pyridin-6-yl)pyridin-2(1H)-one収率 53.1%

試薬・触媒・溶媒 2

HCID 8028Tetrahydrofuran溶媒HCID 8857Ethyl Acetate溶媒

実験手順

To a solution of 1-(2-cyclopropyl-3-methylimidazo[1,2-a]pyridin-6-yl)-4-hydroxypyridin-2(1H)-one (100 mg), (5-chloropyridin-2-yl)methanol (102 mg) and tributylphosphine (266 μl) in THF (15 ml) was added 1,1′-(azodicarbonyl)dipiperidine (269 mg) at 60° C., and the mixture was stirred at the same temperature for 3 h. The mixture was diluted with EtOAc, and washed with water and brine. The organic layer was concentrated, and purified by NH silica gel column chromatography (hexane/EtOAc) to give the title compound (76.8 mg) as a white solid.

後処理

  1. washwashed with water and brine
  2. concentrationThe organic layer was concentrated
  3. custompurified by NH silica gel column chromatography (hexane/EtOAc)

出典と根拠

ORDレコード
ord-546a92ef3e004cc38638bbe9e983e089
出典データセット
uspto-grants-2016_06
特許番号
US09365540B2

反応ノート

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