5-(4-Chlorophenyl)methylene-3-[4-(imidazo[1,2-a]pyridin-5-ylthio)butyl]oxazolidine-2,4-dione → 5-(4-Chlorophenyl)methylene-3-[4-(imidazo[1,2-a]pyridin-5-ylthio)butyl]oxazolidine-2,4-dione hydrochloride
Reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([CH:8]=[C:9]2[O:13][C:12](=[O:14])[N:11]([CH2:15][CH2:16][CH2:17][CH2:18][S:19][C:20]3[N:25]4[CH:26]=[CH:27][N:28]=[C:24]4[CH:23]=[CH:22][CH:21]=3)[C:10]2=[O:29])=[CH:4][CH:3]=1>CO.Cl>[ClH:1].[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([CH:8]=[C:9]2[O:13][C:12](=[O:14])[N:11]([CH2:15][CH2:16][CH2:17][CH2:18][S:19][C:20]3[N:25]4[CH:26]=[CH:27][N:28]=[C:24]4[CH:23]=[CH:22][CH:21]=3)[C:10]2=[O:29])=[CH:6][CH:7]=1Participants
4
Reactant 1
Product 1
Reagents, catalysts & solvents 2
Procedure
To a solution of 0.301 g (0.70 mmol) of 5-(4-chlorophenyl)methylene-3-[4-(imidazo[1,2-a]pyridin-5-ylthio)butyl]oxazolidine-2,4-dione in 10 ml of methanol, 0.10 ml of concentrated hydrochloric acid was added. After the solvent was distilled off, the residue was crystallized by the addition of diethyl ether to yield 0.223 g (68.6%, light pink crystal) of the desired product.
Workup
- distillationAfter the solvent was distilled off
- customthe residue was crystallized by the addition of diethyl ether
Sources & evidence
- ORD record
- ord-ddfa37448dd64177b4b7a815fc9c0367
- Source dataset
- uspto-grants-1998_11
- Patent number
- US05840732
Reaction notes
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