Water → tert-Butyl 5-[1-(1-methylethyl)-2-oxo-1,2-dihydro-3H-imidazo[4,5-b]pyridin-3-yl]-2,3-dihydro-1H-indole-1-carboxylate

HRID 587487Notes

Reaction equation

HRID 587487 reaction equation
[O:1]=[C:2]1[N:10]([C:11]2[CH:12]=[C:13]3[C:17](=[CH:18][CH:19]=2)[N:16]([C:20]([O:22][C:23]([CH3:26])([CH3:25])[CH3:24])=[O:21])[CH2:15][CH2:14]3)[C:5]2=[N:6][CH:7]=[CH:8][CH:9]=[C:4]2[NH:3]1.I[CH:28]([CH3:30])[CH3:29].O>CN(C=O)C>[CH3:29][CH:28]([N:3]1[C:4]2[C:5](=[N:6][CH:7]=[CH:8][CH:9]=2)[N:10]([C:11]2[CH:12]=[C:13]3[C:17](=[CH:18][CH:19]=2)[N:16]([C:20]([O:22][C:23]([CH3:26])([CH3:25])[CH3:24])=[O:21])[CH2:15][CH2:14]3)[C:2]1=[O:1])[CH3:30]

Participants

5

Reactant 3

HCID 962WaterHCID 6362Isopropyl iodideHCID 58577557tert-butyl 5-(2-oxo-1,2-dihydro-3H-imidazo[4,5-b]pyridin-3-yl)-2,3-dihydro-1H-indole-1-carboxylate

Product 1

HCID 58577369tert-Butyl 5-[1-(1-methylethyl)-2-oxo-1,2-dihydro-3H-imidazo[4,5-b]pyridin-3-yl]-2,3-dihydro-1H-indole-1-carboxylateYield 34.4%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
60 °C

Procedure

A mixture of tert-butyl 5-(2-oxo-1,2-dihydro-3H-imidazo[4,5-b]pyridin-3-yl)-2,3-dihydro-1H-indole-1-carboxylate (1480 mg) and 2-iodopropane (714 mg) in DMF (5 mL) was stirred at 60° C. for 4 h, treated with water, and extracted with AcOEt. The organic layer was dried over MgSO4 and concentrated in vacuo. The residue was chromatographed on silica gel eluting with AcOEt/Hexane to give the title compound as white crystals (570 mg).

Workup

  1. extractionextracted with AcOEt
  2. dry with materialThe organic layer was dried over MgSO4
  3. concentrationconcentrated in vacuo
  4. customThe residue was chromatographed on silica gel eluting with AcOEt/Hexane

Sources & evidence

ORD record
ord-ca94af29becb4e72865175d1f187b749
Source dataset
uspto-grants-2016_01
Patent number
US09226921B2

Reaction notes

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