Triethylamine → 4-[4-Butyl-2-(4-trifluoromethyl-phenyl)-thiazol-5-ylmethoxy]-2-trifluoromethyl-benzamide
Reaction equation
[CH2:1]([C:5]1[N:6]=[C:7]([C:24]2[CH:29]=[CH:28][C:27]([C:30]([F:33])([F:32])[F:31])=[CH:26][CH:25]=2)[S:8][C:9]=1[CH2:10][O:11][C:12]1[CH:19]=[CH:18][C:15]([C:16]#[N:17])=[C:14]([C:20]([F:23])([F:22])[F:21])[CH:13]=1)[CH2:2][CH2:3][CH3:4].Cl.[NH2:35][OH:36].C(N(CC)CC)C>O1CCCC1.CO>[CH2:1]([C:5]1[N:6]=[C:7]([C:24]2[CH:25]=[CH:26][C:27]([C:30]([F:33])([F:32])[F:31])=[CH:28][CH:29]=2)[S:8][C:9]=1[CH2:10][O:11][C:12]1[CH:19]=[CH:18][C:15]([C:16]([NH:35][OH:36])=[NH:17])=[C:14]([C:20]([F:23])([F:22])[F:21])[CH:13]=1)[CH2:2][CH2:3][CH3:4].[CH2:1]([C:5]1[N:6]=[C:7]([C:24]2[CH:25]=[CH:26][C:27]([C:30]([F:33])([F:32])[F:31])=[CH:28][CH:29]=2)[S:8][C:9]=1[CH2:10][O:11][C:12]1[CH:19]=[CH:18][C:15]([C:16]([NH2:17])=[O:36])=[C:14]([C:20]([F:23])([F:22])[F:21])[CH:13]=1)[CH2:2][CH2:3][CH3:4]Participants
Reactant 3
Product 2
Reagents, catalysts & solvents 2
Conditions
- Temperature
- 60 °C
Procedure
To a solution of 180 mg of 4-[4-butyl-2-(4-trifluoromethyl-phenyl)-thiazol-5-ylmethoxy]-2-trifluoromethyl-benzonitrile in 5 mL of tetrahydrofuran and 10 ml of methanol was added 267 mg of hydroxylamine hydrochloride followed by 0.55 mL of triethylamine. The resulting mixture was heated to 60° C. overnight. The solvents were removed in vacuo, the resulting residue was poured into water and extracted with ethylacetate. The organic extracts were dried over magnesium sulfate, filtered, and concentrated under reduced pressure. The crude product was purified by column chromatography on silica gel (heptane 1/ethyl acetate 1) to give 90 mg of 4-[4-butyl-2-(4-trifluoromethyl-phenyl)-thiazol-5-ylmethoxy]-N-hydroxy-2-trifluoromethyl-benzamidine and 50 mg of 4-[4-butyl-2-(4-trifluoromethyl-phenyl)-thiazol-5-ylmethoxy]-2-trifluoromethyl-benzamide.
Workup
- customThe solvents were removed in vacuo
- additionthe resulting residue was poured into water
- extractionextracted with ethylacetate
- dry with materialThe organic extracts were dried over magnesium sulfate
- filtrationfiltered
- concentrationconcentrated under reduced pressure
- customThe crude product was purified by column chromatography on silica gel (heptane 1/ethyl acetate 1)
Sources & evidence
- ORD record
- ord-722dc581849240309170170d5d7091d6
- Source dataset
- uspto-grants-2010_05
- Patent number
- US07709509B2
Reaction notes
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