Fumaric Acid → 6-[(4-Fluorophenyl)oxy]-N-methyl-N-(4-{[(3S)-3-methyl-1-piperazinyl]methyl}phenyl)-3-pyridinecarboxamide fumarate
Reaction equation
[C:1]([OH:8])(=[O:7])/[CH:2]=[CH:3]/[C:4]([OH:6])=[O:5].[F:9][C:10]1[CH:15]=[CH:14][C:13]([O:16][C:17]2[N:22]=[CH:21][C:20]([C:23]([N:25]([CH3:40])[C:26]3[CH:31]=[CH:30][C:29]([CH2:32][N:33]4[CH2:38][CH2:37][NH:36][C@@H:35]([CH3:39])[CH2:34]4)=[CH:28][CH:27]=3)=[O:24])=[CH:19][CH:18]=2)=[CH:12][CH:11]=1>CCOC(C)=O>[C:1]([OH:8])(=[O:7])/[CH:2]=[CH:3]/[C:4]([OH:6])=[O:5].[F:9][C:10]1[CH:15]=[CH:14][C:13]([O:16][C:17]2[N:22]=[CH:21][C:20]([C:23]([N:25]([CH3:40])[C:26]3[CH:31]=[CH:30][C:29]([CH2:32][N:33]4[CH2:38][CH2:37][NH:36][C@@H:35]([CH3:39])[CH2:34]4)=[CH:28][CH:27]=3)=[O:24])=[CH:19][CH:18]=2)=[CH:12][CH:11]=1Participants
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 70 °C
Procedure
A suspension of finely ground fumaric acid (13.84 g) in EtOAc (500 mL) was stirred and heated at 70° C. This was added portion-wise to a stirred solution of E2 free base (57.80 g) in EtOAc (1 L) heated at 70° C. When ˜80-100 mL of the fumaric acid suspension had been added, the solution was seeded with previously obtained fumarate salt (40 mg) (prepared using a method similar to that described in Example 2B, Method 4). To the resulting faintly turbid solution was added further fumaric acid suspension (˜50 mL) giving a cloudy solution. On addition of further seeds (40 mg), crystallization started. Addition of the remaining fumaric acid suspension in 8-10 mL portions continued over ˜4 h. Further EtOAc (˜30 mL) was used to aid transfer of the final solid residues of fumaric acid to the reaction vessel. The reaction mixture was stirred at 70° C. for a further 4 h then slowly allowed to cool to room temperature overnight with stirring. The crystalline solid was collected by filtration, washed with EtOAc and dried under argon; then further dried under vacuum at 60° C. overnight to give the title compound (60.8 g).
Workup
- temperatureheated at 70° C
- customprepared
- customgiving a cloudy solution
- additionOn addition of further seeds (40 mg), crystallization
- stirringThe reaction mixture was stirred at 70° C. for a further 4 h
- temperatureto cool to room temperature overnight
- stirringwith stirring
- filtrationThe crystalline solid was collected by filtration
- washwashed with EtOAc
- customdried under argon
- customthen further dried under vacuum at 60° C. overnight
Sources & evidence
- ORD record
- ord-5d9cf03209b744a9a7df382b6e8d3de0
- Source dataset
- uspto-grants-2010_04
- Patent number
- US07700599B2
Reaction notes
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