Hydrogen Peroxide → 4-(2-(4-(4-phenylphthalazin-1-ylamino)phenoxy)pyridin-3-yl)-1H-pyrazole-3-carboxamide

HRID 227795Notes

Reaction equation

HRID 227795 reaction equation
[C:1]1([C:7]2[C:16]3[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=3)[C:10]([NH:17][C:18]3[CH:37]=[CH:36][C:21]([O:22][C:23]4[C:28]([C:29]5[C:30]([C:34]#[N:35])=[N:31][NH:32][CH:33]=5)=[CH:27][CH:26]=[CH:25][N:24]=4)=[CH:20][CH:19]=3)=[N:9][N:8]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.C(=O)([O-])[O-:39].[K+].[K+].OO>CS(C)=O>[C:1]1([C:7]2[C:16]3[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=3)[C:10]([NH:17][C:18]3[CH:19]=[CH:20][C:21]([O:22][C:23]4[C:28]([C:29]5[C:30]([C:34]([NH2:35])=[O:39])=[N:31][NH:32][CH:33]=5)=[CH:27][CH:26]=[CH:25][N:24]=4)=[CH:36][CH:37]=3)=[N:9][N:8]=2)[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1

Participants

5

Reactant 3

HCID 784Hydrogen PeroxideHCID 11430Potassium CarbonateHCID 178510700HCID 178510700, compound

Product 1

HCID 1361316134-(2-(4-(4-phenylphthalazin-1-ylamino)phenoxy)pyridin-3-yl)-1H-pyrazole-3-carboxamide

Reagents, catalysts & solvents 1

HCID 679Dimethyl SulfoxideSolvent

Conditions

Temperature
20 °C

Procedure

In a 20-mL sealed tube was dissolved 4-(2-(4-(4-phenylphthalazin-1-ylamino)phenoxy)pyridin-3-yl)-1-H-pyrazole-3-carbonitrile (0.070 g, 0.145 mmol) in DMSO (1.0 mL). To this was added potassium carbonate (0.024 g, 0.174 mmol) and hydrogen peroxide (0.445 mL, 14.5 mmol) and the mixture was stirred at 20° C. for 3 days and quenched with water. The product was extracted into EtOAc, washed 1× saturated NaHCO3, 1×H2O, dried over Na2SO4, filtered through fritted funnel and concentrated. The title compound was purified using a Gilson reverse phase liquid chromatography system. The product fractions were extracted into CH2Cl2. The organic layers were washed organics 1× saturated NaHCO3, 1×H2O, dried with Na2SO4, filtered through fritted funnel and concentrated to yield 4-(2-(4-(4-phenylphthalazin-1-ylamino)phenoxy)pyridin-3-yl)-1-H-pyrazole-3-carboxamide as light yellow solid. MS m/z=500 [M+1]+. Calc'd for C29H21N7O2: 499.52.

Workup

  1. customIn a 20-mL sealed tube
  2. customquenched with water
  3. extractionThe product was extracted into EtOAc
  4. washwashed 1× saturated NaHCO3, 1×H2O
  5. dry with materialdried over Na2SO4
  6. filtrationfiltered through fritted funnel
  7. concentrationconcentrated
  8. customThe title compound was purified
  9. extractionThe product fractions were extracted into CH2Cl2
  10. washThe organic layers were washed organics 1× saturated NaHCO3, 1×H2O
  11. dry with materialdried with Na2SO4
  12. filtrationfiltered through fritted funnel
  13. concentrationconcentrated

Sources & evidence

ORD record
ord-7727acb22ff64a038a3484d831e5f2bf
Source dataset
uspto-grants-2009_07
Patent number
US07560551B2

Reaction notes

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