Hydrochloric Acid → HCID 22402976, compound
Reaction equation
[CH2:1]([N:8]1[C:12]2[CH:13]=[CH:14][C:15]([C:28]([OH:30])=[O:29])=[C:16]([C:17](=O)[NH:18][C:19]([C:24](=[O:26])[NH2:25])([CH3:23])[CH:20]([CH3:22])[CH3:21])[C:11]=2[N:10]=[C:9]1[CH3:31])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[OH-].[Na+].Cl>O>[CH2:1]([N:8]1[C:12]2[CH:13]=[CH:14][C:15]([C:28]([OH:30])=[O:29])=[C:16]([C:17]3[NH:25][C:24](=[O:26])[C:19]([CH:20]([CH3:22])[CH3:21])([CH3:23])[N:18]=3)[C:11]=2[N:10]=[C:9]1[CH3:31])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
A mixture of 1-benzyl-4-[(1-carbamoyl-1,2-dimethylpropyl)carbamoyl]-2-methyl 5-benzimidazolecarboxylic acid (3.58 g, 8.47 mmol), 10N sodium hydroxide (5.08 mL, 50.8 mmol) and water is stirred for 4 hours at reflux temperature, cooled, acidified to pH 4 with hydrochloric acid and filtered. The filter cake is recrystallized from acetonitrile to give the title product as an off-white powder (1.06 g, 31.0%), mp 198°-208° C. (dec).
Workup
- temperatureat reflux temperature
- temperaturecooled
- filtrationfiltered
- customThe filter cake is recrystallized from acetonitrile
Sources & evidence
- ORD record
- ord-d9c1566cd7a04692a853d055a8bb4ce8
- Source dataset
- uspto-grants-1994_04
- Patent number
- US05300479
Reaction notes
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