1,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine) → tert-butyl 5-(2-oxo-1,2-dihydro-3H-imidazo[4,5-b]pyridin-3-yl)-2,3-dihydro-1H-indole-1-carboxylate

HRID 82529노트

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HRID 82529 반응식
[NH2:1][C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][CH:10]=1)[N:7]([C:11]([O:13][C:14]([CH3:17])([CH3:16])[CH3:15])=[O:12])[CH2:6][CH2:5]2.Cl[C:19]1[C:24]([NH:25][C:26](=O)[O:27]C(C)(C)C)=[CH:23][CH:22]=[CH:21][N:20]=1.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.CC(C)([O-])C.[Na+]>CC(O)C.C1(C)C=CC=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.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd].O>[O:27]=[C:26]1[N:1]([C:2]2[CH:3]=[C:4]3[C:8](=[CH:9][CH:10]=2)[N:7]([C:11]([O:13][C:14]([CH3:17])([CH3:16])[CH3:15])=[O:12])[CH2:6][CH2:5]3)[C:19]2=[N:20][CH:21]=[CH:22][CH:23]=[C:24]2[NH:25]1

참가 물질

9

반응물 4

HCID 6360441,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 11961738tert-Butyl (2-chloropyridin-3-yl)carbamateHCID 22240520tert-Butyl 5-amino-2,3-dihydro-1H-indole-1-carboxylateHCID 23676156Sodium t-butoxide

생성물 1

HCID 58577557tert-butyl 5-(2-oxo-1,2-dihydro-3H-imidazo[4,5-b]pyridin-3-yl)-2,3-dihydro-1H-indole-1-carboxylate수율 26.6%

시약·촉매·용매 4

HCID 9811564Bis(dibenzylideneacetone)palladium촉매HCID 962Water용매HCID 1140Toluene용매HCID 3776Isopropanol용매

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온도
90 °C

실험 절차

A mixture of tert-butyl 5-amino-2,3-dihydro-1H-indole-1-carboxylate (4.10 g), tert-butyl 2-chloropyridin-3-ylcarbamate (4.20 g), Pd2(dba)3 (0.48 g), Xantphos (0.608 g), sodium tert-butoxide (2.52 g) in 2-propanol (64 mL) and toluene (12 mL) was stirred at 90° C. for 40 h, and treated with water and extracted with EtOAc. The organic layer was dried over MgSO4 and concentrated in vacuo. The residue was suspended in CH3CN and the precipitate was collected by filtration to give tert-butyl 5-(2-oxo-1,2-dihydro-3H-imidazo[4,5-b]pyridin-3-yl)-2,3-dihydro-1H-indole-1-carboxylate (1.64 g). The filtrate was evaporated and then the residue was chromatographed on silica gel eluting with AcOEt/Hexane=2/1 to afford second crop (1.4 g).

후처리

  1. extractionextracted with EtOAc
  2. dry with materialThe organic layer was dried over MgSO4
  3. concentrationconcentrated in vacuo
  4. filtrationthe precipitate was collected by filtration

출처 및 근거

ORD 기록
ord-a8f1cc6c94e04e7485da533cf6c57da9
출처 데이터셋
uspto-grants-2014_09
특허 번호
US08846713B2

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