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3-Aminopyridine → 3-[1-(N,N-dimethylglycyl)-3,3-dimethyl-2,3-dihydro-1H-indol-6-yl]-5,5-dimethyl-1-{[2-(pyridin-3-ylamino)pyridin-4-yl]methyl}imidazolidine-2,4-dione

HRID 546607
Notes
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Reaction equation

HRID 546607 reaction equation
Cl[C:2]1[CH:7]=[C:6]([CH2:8][N:9]2[C:13]([CH3:15])([CH3:14])[C:12](=[O:16])[N:11]([C:17]3[CH:25]=[C:24]4[C:20]([C:21]([CH3:33])([CH3:32])[CH2:22][N:23]4[C:26](=[O:31])[CH2:27][N:28]([CH3:30])[CH3:29])=[CH:19][CH:18]=3)[C:10]2=[O:34])[CH:5]=[CH:4][N:3]=1.[NH2:35][C:36]1[CH:37]=[N:38][CH:39]=[CH:40][CH:41]=1.CC1(C)C2C=CC(P(C3C=CC=CC=3)C3C=CC=CC=3)=CC=2OC2C1=CC=C(P(C1C=CC=CC=1)C1C=CC=CC=1)C=2.C(=O)([O-])[O-].[Cs+].[Cs+]>CN1CCCC1=O.ClCCl.C([O-])(=O)C.[Pd+2].C([O-])(=O)C>[CH3:29][N:28]([CH3:30])[CH2:27][C:26]([N:23]1[C:24]2[C:20](=[CH:19][CH:18]=[C:17]([N:11]3[C:12](=[O:16])[C:13]([CH3:15])([CH3:14])[N:9]([CH2:8][C:6]4[CH:5]=[CH:4][N:3]=[C:2]([NH:35][C:36]5[CH:37]=[N:38][CH:39]=[CH:40][CH:41]=5)[CH:7]=4)[C:10]3=[O:34])[CH:25]=2)[C:21]([CH3:33])([CH3:32])[CH2:22]1)=[O:31]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

8

Reactant 4

HCID 100093-AminopyridineHCID 10796Cesium carbonateHCID 576260011-(2-chloropyridin-4-ylmethyl)-3-[1-(2-dimethylamino-acetyl)-3,3-dimethyl-2,3-dihydro-1H-indol-6-yl]-5,5-dimethyl-imidazolidine-2,4-dioneHCID 86628973(9,9-dimethyl-9H-xanthene-3,6-diyl)bis(diphenylphosphine)

Product 1

HCID 57626024
3-[1-(N,N-dimethylglycyl)-3,3-dimethyl-2,3-dihydro-1H-indol-6-yl]-5,5-dimethyl-1-{[2-(pyridin-3-ylamino)pyridin-4-yl]methyl}imidazolidine-2,4-dione
Yield 27.7%

Reagents, catalysts & solvents 3

HCID 167845palladium(II) acetateCatalystHCID 6344DichloromethaneSolventHCID 13387N-methyl-2-pyrrolidoneSolvent

Conditions

Temperature
140 °C

Procedure

To a solution of 242 mg of 1-[(2-chloropyridin-4-yl)methyl]-3-[1-(N,N-dimethylglycyl)-3,3-dimethyl-2,3-dihydro-1H-indol-6-yl]-5,5-dimethylimidazolidine-2,4-dione obtained in stage a) below in 2 mL of N-methylpyrrolidinone are successively added, under argon, 70 mg of 3-aminopyridine, 29 mg of (9,9-dimethyl-9H-xanthene-3,6-diyl)bis(diphenylphosphine) (Xantphos), 11 mg of palladium acetate and 652 mg of caesium carbonate. The reaction mixture is heated at 140° C. for 1 hour by microwave, cooled to room temperature, diluted with 10 mL of dichloromethane and filtered, and the filtrate is concentrated under reduced pressure. The residue is taken up in 30 mL of water and the precipitate formed is filtered off and purified by chromatography on a column of silica, eluting with a mixture of dichloromethane and methanol (93/7 by volume) to give 75 mg of 3-[1-(N,N-dimethylglycyl)-3,3-dimethyl-2,3-dihydro-1H-indol-6-yl]-5,5-dimethyl-1-{[2-(pyridin-3-ylamino)pyridin-4-yl]methyl}imidazolidine-2,4-dione, the characteristics of which are as follows:

Workup

  1. temperaturecooled to room temperature
  2. filtrationfiltered
  3. concentrationthe filtrate is concentrated under reduced pressure
  4. customthe precipitate formed
  5. filtrationis filtered off
  6. custompurified by chromatography on a column of silica
  7. washeluting with a mixture of dichloromethane and methanol (93/7 by volume)

Sources & evidence

ORD record
ord-d0d7df76b2b34daabe922e5b8370743e
Source dataset
uspto-grants-2011_05
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07935819B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes