1,2-Dimethoxyethane → tert-Butyl 4-(3-(3-methyl-1-((6-methylpyridin-2-yl)methyl)-1H-indazol-4-ylcarbamoyl)imidazo[1,2-a]pyridin-7-yl)-5,6-dihydropyridine-1(2H)-carboxylate

HRID 706594ノート

反応式

HRID 706594 の反応式
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.COCCOC.CC1(C)C(C)(C)OB([C:46]2[CH2:51][CH2:50][N:49]([C:52]([O:54][C:55]([CH3:58])([CH3:57])[CH3:56])=[O:53])[CH2:48][CH:47]=2)O1.C(=O)([O-])[O-].[Na+].[Na+]>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].CN(C=O)C>[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:46]4[CH2:51][CH2:50][N:49]([C:52]([O:54][C:55]([CH3:58])([CH3:57])[CH3:56])=[O:53])[CH2:48][CH:47]=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

参加物

7

反応物 4

HCID 80711,2-DimethoxyethaneHCID 10340Sodium CarbonateHCID 4642098Tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,2,3,6-tetrahydropyridine-1-carboxylateHCID 679764107-bromo-N-(3-methyl-1-((6-methylpyridin-2-yl)methyl)-1H-indazol-4-yl)imidazo[1,2-a]pyridine-3-carboxamide

生成物 1

HCID 67976365tert-Butyl 4-(3-(3-methyl-1-((6-methylpyridin-2-yl)methyl)-1H-indazol-4-ylcarbamoyl)imidazo[1,2-a]pyridin-7-yl)-5,6-dihydropyridine-1(2H)-carboxylate

試薬・触媒・溶媒 2

HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)触媒HCID 6228Dimethylformamide溶媒

反応条件

温度
90 °C

実験手順

7-Bromo-N-(3-methyl-1-((6-methylpyridin-2-yl)methyl)-1H-indazol-4-yl)imidazo[1,2-a]pyridine-3-carboxamide (Example 50, Steps A-B; 0.0815 g, 0.171 mmol) was dissolved in 2 mL of 1:1 (DME:DMF). To this was added tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5,6-dihydropyridine-1(2H)-carboxylate (0.0795 g, 0.257 mmol), Pd(dppf)Cl2 (5 mol %), and 2M aqueous sodium carbonate (256 μL, 0.513 mmol). Nitrogen was bubbled through the solution for 5 minutes and the reaction mixture was then heated to 90° C. for 16 hours. The reaction mixture was then diluted with EtOAc and the precipitate formed was filtered and the filtrate was washed with water and brine, dried over sodium sulfate and concentrated under reduced pressure. The crude material was purified by reverse phase chromatography to provided tert-butyl 4-(3-(3-methyl-1-((6-methylpyridin-2-yl)methyl)-1H-indazol-4-ylcarbamoyl)imidazo[1,2-a]pyridin-7-yl)-5,6-dihydropyridine-1-(2H)-carboxylate, which was treated 4M HCl/dioxane to give the title product. MS (APCI), positive scan, m/z=478.2 (M+H).

後処理

  1. customNitrogen was bubbled through the solution for 5 minutes
  2. additionThe reaction mixture was then diluted with EtOAc
  3. customthe precipitate formed
  4. filtrationwas filtered
  5. washthe filtrate was washed with water and brine
  6. dry with materialdried over sodium sulfate
  7. concentrationconcentrated under reduced pressure
  8. customThe crude material was purified by reverse phase chromatography

出典と根拠

ORDレコード
ord-64889e69b86e4cc1ad72135eb3b361dd
出典データセット
uspto-grants-2015_11
特許番号
US09174981B2

反応ノート

読み込み中…