Hydrogen Bromide → HCID 67820012, compound
Reaction equation
Cl.[NH2:2][CH:3]([CH2:7][C:8]1[C:9](=[O:20])[NH:10][C:11]2[C:16]([CH:17]=1)=[CH:15][C:14]([O:18]C)=[CH:13][CH:12]=2)[C:4]([OH:6])=[O:5].[BrH:21]>>[BrH:21].[NH2:2][CH:3]([CH2:7][C:8]1[C:9](=[O:20])[NH:10][C:11]2[C:16]([CH:17]=1)=[CH:15][C:14]([OH:18])=[CH:13][CH:12]=2)[C:4]([OH:6])=[O:5]Participants
3
Procedure
To 6 g of 2-amino-3-(6-methoxy-2-quinolon-3-yl)propionic acid hydrochloride was added 60 ml of 47%-hydrobromic acid, and the mixture was refluxed for 7 hours. After the reaction mixture was cooled, the crystals precipitated were collected by filtration, then recrystallized from water to obtain 1.8 g of 2-amino-3-(6-hydroxy-2-quinolon-3-yl)proprionic acid hydrobromide in the form of yellowish powdery product.
Workup
- temperaturethe mixture was refluxed for 7 hours
- temperatureAfter the reaction mixture was cooled
- customthe crystals precipitated
- filtrationwere collected by filtration
- customrecrystallized from water
Sources & evidence
- ORD record
- ord-72d35bbe02ed48c9917f585d88daa323
- Source dataset
- uspto-grants-1986_03
- Patent number
- US04578381
Reaction notes
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