Hydrochloric Acid → 1-(4-cyanophenyl)-5-(3,6-dimethyl-2,4-dioxo-1-(3-trifluoromethylphenyl)-1,2,3,4-tetrahydropyrimidin-5-yl)-N-(ethylcarbonyl)-1H-pyrazole-4-sulfonamide

HRID 576803Notes

Reaction equation

HRID 576803 reaction equation
[C:1]([C:3]1[CH:8]=[CH:7][C:6]([N:9]2[C:13]([C:14]3[C:15](=[O:33])[N:16]([CH3:32])[C:17](=[O:31])[N:18]([C:21]4[CH:26]=[CH:25][CH:24]=[C:23]([C:27]([F:30])([F:29])[F:28])[CH:22]=4)[C:19]=3[CH3:20])=[C:12]([S:34]([NH2:37])(=[O:36])=[O:35])[CH:11]=[N:10]2)=[CH:5][CH:4]=1)#[N:2].C(N=[C:41]=[O:42])C.[CH:43](N(C(C)C)CC)(C)[CH3:44].Cl>C(#N)C.C(OCC)(=O)C>[C:1]([C:3]1[CH:8]=[CH:7][C:6]([N:9]2[C:13]([C:14]3[C:15](=[O:33])[N:16]([CH3:32])[C:17](=[O:31])[N:18]([C:21]4[CH:26]=[CH:25][CH:24]=[C:23]([C:27]([F:30])([F:29])[F:28])[CH:22]=4)[C:19]=3[CH3:20])=[C:12]([S:34]([NH:37][C:41]([CH2:43][CH3:44])=[O:42])(=[O:36])=[O:35])[CH:11]=[N:10]2)=[CH:5][CH:4]=1)#[N:2]

Participants

7

Reactant 4

HCID 313Hydrochloric AcidHCID 8022Ethyl isocyanateHCID 81531DiisopropylethylamineHCID 712514151-(4-cyanophenyl)-5-(3,6-dimethyl-2,4-dioxo-1-(3-trifluoromethylphenyl)-1,2,3,4-tetrahydropyrimidin-5-yl)-1H-pyrazole-4-sulfonamide

Product 1

HCID 715140911-(4-cyanophenyl)-5-(3,6-dimethyl-2,4-dioxo-1-(3-trifluoromethylphenyl)-1,2,3,4-tetrahydropyrimidin-5-yl)-N-(ethylcarbonyl)-1H-pyrazole-4-sulfonamide

Reagents, catalysts & solvents 2

HCID 6342AcetonitrileSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
50 °C

Procedure

1-(4-Cyanophenyl)-5-(3,6-dimethyl-2,4-dioxo-1-(3-trifluoromethylphenyl)-1,2,3,4-tetrahydropyrimidin-5-yl)-1H-pyrazole-4-sulfonamide (prepared in Example 205) (97 mg) was dissolved in acetonitrile (2 ml) and thereto were added ethyl isocyanate (0.043 ml) and diisopropylethylamine (0.065 ml) and the resulting mixture was stirred at 50° C. for four hours. The mixture was cooled to room temperature, and thereto were then added 1N hydrochloric acid (20 ml) and ethyl acetate (30 ml) such that the intended products were extracted into an organic layer. The organic layer was washed with 1N hydrochloric acid (20 ml) and saturated saline (30 ml) successively, dried over magnesium sulfate and then concentrated under reduced pressure. The residue was purified by silica gel column chromatography (eluent: chloroform/methanol) to afford 1-(4-cyanophenyl)-5-(3,6-dimethyl-2,4-dioxo-1-(3-trifluoromethylphenyl)-1,2,3,4-tetrahydropyrimidin-5-yl)-N-(ethylcarbonyl)-1H-pyrazole-4-sulfonamide (88 mg).

Workup

  1. temperatureThe mixture was cooled to room temperature
  2. extractionwere extracted into an organic layer
  3. washThe organic layer was washed with 1N hydrochloric acid (20 ml) and saturated saline (30 ml) successively
  4. dry with materialdried over magnesium sulfate
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was purified by silica gel column chromatography (eluent: chloroform/methanol)

Sources & evidence

ORD record
ord-dad5948a27c74368bb959d7949bb9155
Source dataset
uspto-grants-2015_05
Patent number
US09040516B2

Reaction notes

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