1-Chloro-4-isocyanato-2-(trifluoromethyl) benzene → N-{5-[4-chloro-3-({[4-chloro-3-(trifluoromethyl)phenyl]carbamoyl}amino)phenoxy][1,3]thiazolo[5,4-b]pyridin-2-yl}cyclopropanecarboxamide

HRID 2366782Notes

Reaction equation

HRID 2366782 reaction equation
[NH2:1][C:2]1[CH:3]=[C:4]([CH:21]=[CH:22][C:23]=1[Cl:24])[O:5][C:6]1[N:11]=[C:10]2[S:12][C:13]([NH:15][C:16]([CH:18]3[CH2:20][CH2:19]3)=[O:17])=[N:14][C:9]2=[CH:8][CH:7]=1.[Cl:25][C:26]1[CH:31]=[CH:30][C:29]([N:32]=[C:33]=[O:34])=[CH:28][C:27]=1[C:35]([F:38])([F:37])[F:36]>CN(C)C=O.C(OCC)(=O)C>[Cl:24][C:23]1[CH:22]=[CH:21][C:4]([O:5][C:6]2[N:11]=[C:10]3[S:12][C:13]([NH:15][C:16]([CH:18]4[CH2:20][CH2:19]4)=[O:17])=[N:14][C:9]3=[CH:8][CH:7]=2)=[CH:3][C:2]=1[NH:1][C:33](=[O:34])[NH:32][C:29]1[CH:30]=[CH:31][C:26]([Cl:25])=[C:27]([C:35]([F:36])([F:37])[F:38])[CH:28]=1

Participants

5

Reactant 2

HCID 27332651-Chloro-4-isocyanato-2-(trifluoromethyl) benzeneHCID 57384284N-[5-(3-amino-4-chlorophenoxy) [1,3]thiazolo[5,4-b]pyridin-2-yl]cyclopropanecarboxamide

Product 1

HCID 58451285N-{5-[4-chloro-3-({[4-chloro-3-(trifluoromethyl)phenyl]carbamoyl}amino)phenoxy][1,3]thiazolo[5,4-b]pyridin-2-yl}cyclopropanecarboxamideYield 33%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

N-[5-(3-Amino-4-chlorophenoxy)[1,3]thiazolo[5,4-b]pyridin-2-yl]cyclopropanecarboxamide (120 mg, 0.33 mmol) was dissolved in N,N-dimethylformamide (2.0 ml), 1-chloro-4-isocyanato-2-(trifluoromethyl)benzene (89 mg, 0.40 mmol) was added, and the mixture was stirred at room temperature for 10 hr. The reaction mixture was diluted with ethyl acetate (10 mL), and washed with saturated brine (10 mL). The organic layer was dried over anhydrous sodium sulfate and concentrated under reduced pressure. The obtained residue was purified by basic silica gel column chromatography (ethyl acetate/hexane=50/50→100/0), and the obtained solution was concentrated under reduced pressure. The residue was recrystallized from ethyl acetate to give the title compound (63 mg, 33%) as a colorless powder.

Workup

  1. washwashed with saturated brine (10 mL)
  2. dry with materialThe organic layer was dried over anhydrous sodium sulfate
  3. concentrationconcentrated under reduced pressure
  4. customThe obtained residue was purified by basic silica gel column chromatography (ethyl acetate/hexane=50/50→100/0)
  5. concentrationthe obtained solution was concentrated under reduced pressure
  6. customThe residue was recrystallized from ethyl acetate

Sources & evidence

ORD record
ord-68a179a595244f25981fbd594ec36bf3
Source dataset
uspto-grants-2014_04
Patent number
US08697874B2

Reaction notes

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