Sodium Carbonate → N-(3-methyl-1-((6-methylpyridin-2-yl)methyl)-1H-indazol-4-yl)-7-(1-methyl-6-oxo-1,6-dihydropyridin-3-yl)imidazo[1,2-a]pyridine-3-carboxamide

HRID 706621

반응식

HRID 706621 반응식
Br[C:2]1[CH:7]=[CH:6][N:5]2[C:8]([C:11]([NH:13][C:14]3[CH:22]=[CH:21][CH:20]=[C:19]4[C:15]=3[C:16]([CH3:31])=[N:17][N:18]4[CH2:23][C:24]3[CH:29]=[CH:28][CH:27]=[C:26]([CH3:30])[N:25]=3)=[O:12])=[CH:9][N:10]=[C:4]2[CH:3]=1.[CH3:32][N:33]1[CH:38]=[C:37](B2OC(C)(C)C(C)(C)O2)[CH:36]=[CH:35][C:34]1=[O:48].C(=O)([O-])[O-].[Na+].[Na+]>C(COC)OC.CN(C)C=O.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2]>[CH3:31][C:16]1[C:15]2[C:19](=[CH:20][CH:21]=[CH:22][C:14]=2[NH:13][C:11]([C:8]2[N:5]3[CH:6]=[CH:7][C:2]([C:37]4[CH:36]=[CH:35][C:34](=[O:48])[N:33]([CH3:32])[CH:38]=4)=[CH:3][C:4]3=[N:10][CH:9]=2)=[O:12])[N:18]([CH2:23][C:24]2[CH:29]=[CH:28][CH:27]=[C:26]([CH3:30])[N:25]=2)[N:17]=1

참가 물질

6

반응물 3

HCID 10340Sodium CarbonateHCID 454801941-Methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2(1H)-oneHCID 679764107-bromo-N-(3-methyl-1-((6-methylpyridin-2-yl)methyl)-1H-indazol-4-yl)imidazo[1,2-a]pyridine-3-carboxamide

생성물 1

HCID 57387148N-(3-methyl-1-((6-methylpyridin-2-yl)methyl)-1H-indazol-4-yl)-7-(1-methyl-6-oxo-1,6-dihydropyridin-3-yl)imidazo[1,2-a]pyridine-3-carboxamide수율 51.3%

시약·촉매·용매 2

HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)촉매HCID 18463208dimethoxyethane N,N-dimethylformamide용매

반응 조건

온도
90 °C

실험 절차

7-Bromo-N-(3-methyl-1-((6-methylpyridin-2-yl)methyl)-1H-indazol-4-yl)imidazo[1,2-a]pyridine-3-carboxamide (0.05 g, 0.12 mmol) was dissolved in dimethoxyethane:dimethylformamide (1:1, 0.8 mL) in a 2 dram vial, and 1-Methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2(1H)-one (0.04 g, 0.17 mmol), PdCl2(dppf)*dcm (0.005 g, 0.006 mmol), and 2 M sodium carbonate (0.17 mL, 0.34 mmol) were added. Nitrogen was bubbled through the reaction mixture for 5 minutes before capping the vial and heating in a sand bath at 90° C. overnight. The reaction mixture was diluted with ethyl acetate and water. A greenish precipitate formed and was collected. The crude material was purified by preparatory thin layer chromatography (silica, 20×20 cm, 0.5 mm) developed in a chamber with 10% MeOH/DCM. The UV active band with Rf=0.1 was isolated and the silica washed with 10% MeOH/DCM. The filtrate was concentrated to give N-(3-methyl-1-((6-methylpyridin-2-yl)methyl)-1H-indazol-4-yl)-7-(1-methyl-6-oxo-1,6-dihydropyridin-3-yl)imidazo[1,2-a]pyridine-3-carboxamide as a beige solid (31 mg).

후처리

  1. customNitrogen was bubbled through the reaction mixture for 5 minutes
  2. additionThe reaction mixture was diluted with ethyl acetate and water
  3. customA greenish precipitate formed
  4. customwas collected
  5. customThe crude material was purified by preparatory thin layer chromatography (silica, 20×20 cm, 0.5 mm)
  6. customThe UV active band with Rf=0.1 was isolated
  7. washthe silica washed with 10% MeOH/DCM
  8. concentrationThe filtrate was concentrated

출처 및 근거

ORD 기록
ord-d63acd04cdd6428f95fef0246b68e518
출처 데이터셋
uspto-grants-2015_11
특허 번호
US09174981B2

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