Potassium Carbonate → tert-butyl 3-((4-oxo-8-(3-(2-oxo-2,3-dihydro-1H-benzo[d]imidazol-1-yl)propyl)-1-phenyl-1,3,8-triazaspiro[4.5]decan-3-yl)methyl)benzoate

HRID 1751010Notes

Reaction equation

HRID 1751010 reaction equation
[O:1]=[C:2]1[C:6]2([CH2:11][CH2:10][NH:9][CH2:8][CH2:7]2)[N:5]([C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)[CH2:4][N:3]1[CH2:18][C:19]1[CH:20]=[C:21]([CH:29]=[CH:30][CH:31]=1)[C:22]([O:24][C:25]([CH3:28])([CH3:27])[CH3:26])=[O:23].I[CH2:33][CH2:34][CH2:35][N:36]1[C:40]2[CH:41]=[CH:42][C:43](=O)[CH2:44][C:39]=2[NH:38][C:37]1=[O:46].C(=O)([O-])[O-].[K+].[K+]>CN(C)C=O>[O:1]=[C:2]1[C:6]2([CH2:11][CH2:10][N:9]([CH2:33][CH2:34][CH2:35][N:36]3[C:40]4[CH:41]=[CH:42][CH:43]=[CH:44][C:39]=4[NH:38][C:37]3=[O:46])[CH2:8][CH2:7]2)[N:5]([C:12]2[CH:13]=[CH:14][CH:15]=[CH:16][CH:17]=2)[CH2:4][N:3]1[CH2:18][C:19]1[CH:20]=[C:21]([CH:29]=[CH:30][CH:31]=1)[C:22]([O:24][C:25]([CH3:28])([CH3:26])[CH3:27])=[O:23]

Participants

5

Reactant 3

HCID 11430Potassium CarbonateHCID 58046667Tert-butyl 3-((4-oxo-1-phenyl-1,3,8-triazaspiro[4.5]decan-3-yl)methyl)benzoateHCID 1317312971-(3-iodopropyl)-1,3-dihydro-2H-benzimidazol-2-one-one

Product 1

HCID 58046630tert-butyl 3-((4-oxo-8-(3-(2-oxo-2,3-dihydro-1H-benzo[d]imidazol-1-yl)propyl)-1-phenyl-1,3,8-triazaspiro[4.5]decan-3-yl)methyl)benzoateYield 77.4%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
65 °C

Procedure

A mixture of tert-butyl 3-((4-oxo-1-phenyl-1,3,8-triazaspiro[4.5]decan-3-yl)methyl)benzoate (500 mg, 1.19 mmol, 1 equiv), 1-(3-iodopropyl)-1,3-dihydro-2H-benzimidazol-2-one-one (358.8 mg, 1.19 mmol, 1 equiv), and potassium carbonate (493.4 mg, 3.57 mmol, 3 equiv) in N,N-dimethylformamide was heated at 65° C. for 16 h. After cooling to ambient temperature, the crude mixture was partitioned between ethyl acetate and water. The organic layer was dried over MgSO4, filtered, concentrated, and the crude residue was purified using preparatory thin layer chromatography in 10% methanol in dichloromethane to afford the title compound (548 mg, 77.4%); 1H NMR (400 MHz, DMSO-d6): δ 1.52 (s, 9H); 1.61 (d, 2H, J=12.8 Hz), 1.83 (t, 2H, J=6.8 Hz); 2.36 (t, 2H, J=6.8 Hz); 2.54-2.73 (m, 6H); 3.86 (t, 2H, J=6.8 and 6.4 Hz); 4.58 (s, 2H); 4.61 (s, 2H); 6.77 (t, 1H, J=7.6 and 7.2 Hz); 6.85 (d, 2H, J=8 Hz); 6.97 (d, 1H, J=2.8 Hz); 7.18-7.25 (m, 3H); 7.48-7.55 (m, 2H); 7.79-7.84 (m, 2H); 10.81 (s, 1H); MS for C35H41N5O4 m/z 596.16 (M+H)+.

Workup

  1. temperatureAfter cooling to ambient temperature
  2. customthe crude mixture was partitioned between ethyl acetate and water
  3. dry with materialThe organic layer was dried over MgSO4
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customthe crude residue was purified

Sources & evidence

ORD record
ord-cea117ae2aa0428ebfdc9ebeb0e82674
Source dataset
uspto-grants-2015_10
Patent number
US09156840B2

Reaction notes

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