Toluene → HCID 178438435, compound

HRID 2048912Notes

Reaction equation

HRID 2048912 reaction equation
[OH:1][C:2]([CH3:40])([CH3:39])[CH2:3][O:4][C@H:5]1[CH2:10][CH2:9][C@H:8]([N:11]2[C:16](=[O:17])[C:15]([CH2:18][C:19]3[CH:24]=[CH:23][C:22]([C:25]4[C:26]([C:31]#[N:32])=[CH:27][CH:28]=[CH:29][CH:30]=4)=[CH:21][CH:20]=3)=[C:14]([CH2:33][CH2:34][CH3:35])[N:13]3[N:36]=[CH:37][CH:38]=[C:12]23)[CH2:7][CH2:6]1.C[Si]([N:45]=[N+:46]=[N-:47])(C)C.C([Sn](=O)CCCC)CCC.C1(C)C=CC=CC=1>O.C(OCC)(=O)C>[OH:1][C:2]([CH3:39])([CH3:40])[CH2:3][O:4][C@H:5]1[CH2:10][CH2:9][C@H:8]([N:11]2[C:16](=[O:17])[C:15]([CH2:18][C:19]3[CH:24]=[CH:23][C:22]([C:25]4[CH:30]=[CH:29][CH:28]=[CH:27][C:26]=4[C:31]4[NH:47][N:46]=[N:45][N:32]=4)=[CH:21][CH:20]=3)=[C:14]([CH2:33][CH2:34][CH3:35])[N:13]3[N:36]=[CH:37][CH:38]=[C:12]23)[CH2:7][CH2:6]1

Participants

7

Reactant 4

HCID 1140TolueneHCID 61221Dibutyltin oxideHCID 78378AzidotrimethylsilaneHCID 178438618HCID 178438618, compound

Product 1

HCID 178438435HCID 178438435, compoundYield 45%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
100 °C

Procedure

A mixture of 4′-({4-[trans-4-(2-hydroxy-2-methylpropoxy)cyclohexyl]-5-oxo-7-propyl-4,5-dihydropyrazolo[1,5-a]pyrimidin-6-yl}methyl)biphenyl-2-carbonitrile (0.15 g), trimethylsilylazide (0.54 mL), dibutyltinoxide (0.086 g) and toluene (3 mL) was stirred at 100° C. for 5 days. Ethyl acetate and water were added to the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed with water and then with saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure, and the residue was dissolved in tetrahydrofuran (2 mL). Tetrabutylammonium fluoride (1.0 M tetrahydrofuran solution, 0.9 mL) was added, and the mixture was stirred at room temperature for 15 hr. The reaction mixture was diluted with ethyl acetate, washed with 1 M hydrochloric acid, then with saturated aqueous sodium hydrogen carbonate solution and saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel column chromatography to give the title compound as a colorless amorphous solid (0.075 g, 45%).

Workup

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe organic layer was washed with water
  3. dry with materialwith saturated brine, and dried over anhydrous magnesium sulfate
  4. customThe solvent was evaporated under reduced pressure
  5. dissolutionthe residue was dissolved in tetrahydrofuran (2 mL)
  6. additionTetrabutylammonium fluoride (1.0 M tetrahydrofuran solution, 0.9 mL) was added
  7. stirringthe mixture was stirred at room temperature for 15 hr
  8. additionThe reaction mixture was diluted with ethyl acetate
  9. washwashed with 1 M hydrochloric acid
  10. dry with materialwith saturated aqueous sodium hydrogen carbonate solution and saturated brine, and dried over anhydrous magnesium sulfate
  11. customThe solvent was evaporated under reduced pressure
  12. customthe residue was purified by silica gel column chromatography

Sources & evidence

ORD record
ord-2d07832b370d4c22bb974f23c09494f1
Source dataset
uspto-grants-2013_11
Patent number
US08592431B2

Reaction notes

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