Ethyl isothiocyanatoformate → ethyl ({[5-(3-{[(1,3-dimethyl-1H-pyrazol-5-yl)carbonyl]amino}-5-methylphenoxy)pyridin-2-yl]amino}carbonothioyl)carbamate

HRID 1874356

Reaction equation

HRID 1874356 reaction equation
[NH2:1][C:2]1[N:7]=[CH:6][C:5]([O:8][C:9]2[CH:10]=[C:11]([NH:16][C:17]([C:19]3[N:23]([CH3:24])[N:22]=[C:21]([CH3:25])[CH:20]=3)=[O:18])[CH:12]=[C:13]([CH3:15])[CH:14]=2)=[CH:4][CH:3]=1.[N:26]([C:29]([O:31][CH2:32][CH3:33])=[O:30])=[C:27]=[S:28]>CS(C)=O.O>[CH3:24][N:23]1[C:19]([C:17]([NH:16][C:11]2[CH:10]=[C:9]([CH:14]=[C:13]([CH3:15])[CH:12]=2)[O:8][C:5]2[CH:4]=[CH:3][C:2]([NH:1][C:27]([NH:26][C:29](=[O:30])[O:31][CH2:32][CH3:33])=[S:28])=[N:7][CH:6]=2)=[O:18])=[CH:20][C:21]([CH3:25])=[N:22]1

Participants

5

Reactant 2

HCID 85320Ethyl isothiocyanatoformateHCID 57749350N-{3-[(6-aminopyridin-3-yl)oxy]-5-methylphenyl}-1,3-dimethyl-1H-pyrazole-5-carboxamide

Product 1

HCID 57749265ethyl ({[5-(3-{[(1,3-dimethyl-1H-pyrazol-5-yl)carbonyl]amino}-5-methylphenoxy)pyridin-2-yl]amino}carbonothioyl)carbamateYield 104.2%

Reagents, catalysts & solvents 2

HCID 679Dimethyl SulfoxideSolventHCID 962WaterSolvent

Procedure

To a solution of N-{3-[(6-aminopyridin-3-yl)oxy]-5-methylphenyl}-1,3-dimethyl-1H-pyrazole-5-carboxamide (2.23 g, 5.43 mmol) in DMSO (30 mL) was added ethyl isothiocyanatoformate (770 μL, 6.52 mmol), and the mixture was stirred at room temperature for 12 hr. The reaction mixture was diluted with water and extracted with ethyl acetate. The organic layer was washed with water and saturated brine, dried over anhydrous magnesium sulfate and filtrated. The filtrate was concentrated under reduced pressure, and the residue was purified by column chromatography (silica gel, hexane/ethyl acetate=100/0→50/50) to give the title compound (2.65 g, 88%) as a pale-yellow oil.

Workup

  1. extractionextracted with ethyl acetate
  2. washThe organic layer was washed with water and saturated brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. filtrationfiltrated
  5. concentrationThe filtrate was concentrated under reduced pressure
  6. customthe residue was purified by column chromatography (silica gel, hexane/ethyl acetate=100/0→50/50)

Sources & evidence

ORD record
ord-2c9751d6300345b79beb539e103a368b
Source dataset
uspto-grants-2012_11
Patent number
US08304557B2

Linked notes

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