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Potassium Carbonate → 1(2H)-Pyridinecarboxylic acid,4-(5-bromo-4-chloro-1H-pyrrolo[2,3-b]pyridin-2-yl)-3,6-dihydro-,1,1-dimethylethyl ester

HRID 2375944
ノート
印刷プレビュー

反応式

HRID 2375944 の反応式
[Br:1][C:2]1[C:3]([Cl:12])=[C:4]2[CH:10]=[C:9](I)[NH:8][C:5]2=[N:6][CH:7]=1.C(=O)([O-])[O-].[K+].[K+].[C:19]([O:23][C:24]([N:26]1[CH2:31][CH:30]=[C:29](B2OC(C)(C)C(C)(C)O2)[CH2:28][CH2:27]1)=[O:25])([CH3:22])([CH3:21])[CH3:20]>Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[C:19]([O:23][C:24]([N:26]1[CH2:27][CH:28]=[C:29]([C:9]2[NH:8][C:5]3=[N:6][CH:7]=[C:2]([Br:1])[C:3]([Cl:12])=[C:4]3[CH:10]=2)[CH2:30][CH2:31]1)=[O:25])([CH3:22])([CH3:20])[CH3:21]
参加物実験手順後処理出典と根拠反応ノート

参加物

5

反応物 3

HCID 11430Potassium CarbonateHCID 4642098Tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,2,3,6-tetrahydropyridine-1-carboxylateHCID 598545525-Bromo-4-chloro-2-iodo-1H-pyrrolo[2,3-b]pyridine

生成物 1

HCID 598545621(2H)-Pyridinecarboxylic acid,4-(5-bromo-4-chloro-1H-pyrrolo[2,3-b]pyridin-2-yl)-3,6-dihydro-,1,1-dimethylethyl ester

試薬・触媒・溶媒 1

HCID 178418476
HCID 178418476、化合物
触媒

実験手順

To a mixture of 5-bromo-4-chloro-2-iodo-1H-pyrrolo[2,3-b]pyridine (46 mg, 0.12 mmol), potassium carbonate (36 mg, 0.25 mmol), dichlorobis-(triphenylphosphine)palladium (9 mg, 0.01 mmol) and 4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-3,6-dihydro-2H-pyridine-1-carboxylic acid tert-butyl ester (42 mg, 0.13 mmol) were added degassed dioxane (4 mL) and water (1 mL), and the mixture was heated to reflux for 5 h. The reaction was evaporated under reduced pressure and the residue was dissolved in DCM and filtered. The DCM filtrate was evaporated and the crude product obtained was purified by chromatography on silica gel [Jones Flashmaster, 20 g/70 mL cartridge, eluting with DCM:methanol 100:0→99.5:0.5], yielding the title compound. MS (ES+): m/z 413.84 (100) [MH+]; HPLC: tR=6.95 min (ZQ2000, nonpolar—15 min).

後処理

  1. additionwere added
  2. customdegassed dioxane (4 mL) and water (1 mL)
  3. temperaturethe mixture was heated
  4. temperatureto reflux for 5 h
  5. customThe reaction was evaporated under reduced pressure
  6. dissolutionthe residue was dissolved in DCM
  7. filtrationfiltered
  8. customThe DCM filtrate was evaporated
  9. customthe crude product obtained
  10. customwas purified by chromatography on silica gel [Jones Flashmaster, 20 g/70 mL cartridge, eluting with DCM:methanol 100:0→99.5:0.5]

出典と根拠

ORDレコード
ord-e3164ee2d11f4fb2a0ddf60516f11115
出典データセット
uspto-grants-2008_12
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07465726B2

反応ノート

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