Hydrochloric Acid → 2-Phenyl-5-trifluoromethyl-oxazole-4-carboxylic acid (4-piperazin-1-yl-phenyl)-amide hydrochloride
Reaction equation
[ClH:1].C(OC([N:9]1[CH2:14][CH2:13][N:12]([C:15]2[CH:20]=[CH:19][C:18]([NH:21][C:22]([C:24]3[N:25]=[C:26]([C:33]4[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=4)[O:27][C:28]=3[C:29]([F:32])([F:31])[F:30])=[O:23])=[CH:17][CH:16]=2)[CH2:11][CH2:10]1)=O)(C)(C)C>O1CCOCC1>[ClH:1].[N:12]1([C:15]2[CH:20]=[CH:19][C:18]([NH:21][C:22]([C:24]3[N:25]=[C:26]([C:33]4[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=4)[O:27][C:28]=3[C:29]([F:31])([F:30])[F:32])=[O:23])=[CH:17][CH:16]=2)[CH2:13][CH2:14][NH:9][CH2:10][CH2:11]1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
A solution of dioxane (10 mL) that was saturated with hydrogen chloride gas was added to 4-{4-[(2-Phenyl-5-trifluoromethyl-oxazole-4-carbonyl)-amino]-phenyl}-piperazine-1-carboxylic acid tert-butyl ester (300 mg, 0.581 mmol). The reaction mixture was stirred for 30 minutes at room temperature and then the volatiles were evaporated under reduced pressure. The residue was triturated with diethyl ether to yield 2-phenyl-5-trifluoromethyl-oxazole-4-carboxylic acid (4-piperazin-1-yl-phenyl)-amide hydrochloride as a white powder (226 mg).