Isopropylamine → N-[4-Chloro-2-methyl-6-[[(1-methylethyl)amino]carbonyl]-phenyl]-1-(3-chloro-2-pyridinyl)-3-(trifluoromethyl)-1H-pyrazole-5-carboxamide

HRID 61936Notes

Reaction equation

HRID 61936 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([CH3:29])[C:5]2[N:10]=[C:9]([C:11]3[N:15]([C:16]4[C:21]([Cl:22])=[CH:20][CH:19]=[CH:18][N:17]=4)[N:14]=[C:13]([C:23]([F:26])([F:25])[F:24])[CH:12]=3)[O:8][C:7](=[O:27])[C:6]=2[CH:28]=1.[CH:30]([NH2:33])([CH3:32])[CH3:31]>O1CCCC1>[Cl:1][C:2]1[CH:28]=[C:6]([C:7]([NH:33][CH:30]([CH3:32])[CH3:31])=[O:27])[C:5]([NH:10][C:9]([C:11]2[N:15]([C:16]3[C:21]([Cl:22])=[CH:20][CH:19]=[CH:18][N:17]=3)[N:14]=[C:13]([C:23]([F:26])([F:24])[F:25])[CH:12]=2)=[O:8])=[C:4]([CH3:29])[CH:3]=1

Participants

4

Reactant 2

HCID 6363IsopropylamineHCID 231503516-chloro-2-[2-(3-chloro-pyridin-2-yl)-5-trifluoromethyl-2H-pyrazol-3-yl]-8-methylbenzo[d][1,3]oxazin-4-one2×

Product 1

HCID 11228424N-[4-Chloro-2-methyl-6-[[(1-methylethyl)amino]carbonyl]-phenyl]-1-(3-chloro-2-pyridinyl)-3-(trifluoromethyl)-1H-pyrazole-5-carboxamide

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent2×

Procedure

To a solution of 6-chloro-2-[1-(3-chloro-2-pyridinyl)-3-(trifluoromethyl)-1H-pyrazol-5-yl]-8-methyl-4H-3,1-benzoxazin-4-one (i.e. the benzoxazinone product of Step D) (5.0 g, 11.3 mmol) in tetrahydrofuran (35 mL) was added dropwise isopropylamine (2.9 mL, 34.0 mmol) in tetrahydrofuran (10 mL) at room temperature. The reaction mixture was then warmed until all solids had dissolved and stirred an additional five minutes, at which point thin layer chromatography on silica gel confirmed completion of the reaction. The tetrahydrofuran solvent was evaporated under reduced pressure, and the residual solid was purified by chromatography on silica gel, followed by trituration with ether/hexane to afford the title compound, a compound of the present invention, as a solid (4.6 g), melting at 195-196° C.

Workup

  1. temperatureThe reaction mixture was then warmed until all solids
  2. dissolutionhad dissolved
  3. customThe tetrahydrofuran solvent was evaporated under reduced pressure
  4. customthe residual solid was purified by chromatography on silica gel

Sources & evidence

ORD record
ord-bb96323ee5454b59985890275b2c3418
Source dataset
uspto-grants-2016_09
Patent number
US09445593B1

Reaction notes

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