Citric Acid → HCID 9986926, compound
Reaction equation
[CH3:1][N:2]([CH3:35])[C:3]1([C:29]2[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=2)[CH2:8][CH2:7][CH:6]([CH2:9][NH:10][C:11]([N:13]2[CH2:18][CH:17]=[C:16]([C:19]3[C:27]4[C:22](=[CH:23][CH:24]=[C:25]([F:28])[CH:26]=4)[NH:21][CH:20]=3)[CH2:15][CH2:14]2)=[O:12])[CH2:5][CH2:4]1.[C:36]([OH:48])(=[O:47])[CH2:37][C:38]([CH2:43][C:44]([OH:46])=[O:45])([C:40]([OH:42])=[O:41])[OH:39]>C(O)C>[C:36]([OH:48])(=[O:47])[CH2:37][C:38]([CH2:43][C:44]([OH:46])=[O:45])([C:40]([OH:42])=[O:41])[OH:39].[CH3:1][N:2]([CH3:35])[C:3]1([C:29]2[CH:30]=[CH:31][CH:32]=[CH:33][CH:34]=2)[CH2:4][CH2:5][CH:6]([CH2:9][NH:10][C:11]([N:13]2[CH2:14][CH:15]=[C:16]([C:19]3[C:27]4[C:22](=[CH:23][CH:24]=[C:25]([F:28])[CH:26]=4)[NH:21][CH:20]=3)[CH2:17][CH2:18]2)=[O:12])[CH2:7][CH2:8]1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
The polar diastereoisomer of 4-(5-fluoro-1H-indol-3-yl)-3,6-dihydro-2H-pyridine-1-carboxylic acid-(4-dimethylamino-4-phenylcyclohexyl-methyl)-amide (140 mg, 0.294 mmole) was dissolved in abs. ethanol (10 ml). Citric acid (105.7 mg, 0.55 mmole) was added in solid form. The mixture was stirred at 40° C. until the citric acid had completely dissolved. A sticky precipitate formed at RT on the wall of the flask. The alcohol was distilled off and the residue was dried in vacuo. The polar diastereoisomer of 4-(5-fluoro-1H-indol-3-yl)-3,6-dihydro-2H-pyridine-1-carboxylic acid-(4-dimethylamino-4-phenylcyclohexyl-methyl)-amide citrate (255 mg, hygroscopic, Example 44) was an orange-brown solid.
Workup
- dissolutionhad completely dissolved
- customA sticky precipitate formed at RT on the wall of the flask
- distillationThe alcohol was distilled off
- customthe residue was dried in vacuo
Sources & evidence
- ORD record
- ord-17357358d1704047bf3a7138e5e8cb6e
- Source dataset
- uspto-grants-2010_07
- Patent number
- US07759385B2
Reaction notes
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