Reaction equation
[NH2:1][C:2]1[N:7]=[C:6]([C:8]2[CH:13]=[CH:12][C:11]([Cl:14])=[CH:10][CH:9]=2)[N:5]=[C:4]([C:15]([OH:17])=[O:16])[CH:3]=1.[Cl:18]N1C(=O)CCC1=O.O>CN(C)C=O>[NH2:1][C:2]1[N:7]=[C:6]([C:8]2[CH:9]=[CH:10][C:11]([Cl:14])=[CH:12][CH:13]=2)[N:5]=[C:4]([C:15]([OH:17])=[O:16])[C:3]=1[Cl:18]Participants
Conditions
- Temperature
- 65 °C
Procedure
To a solution of 6-amino-2-(4-chlorophenyl)-4-pyrimidinecarboxylic acid (i.e. the product of Step B) (75 g, 300 mmol) in N,N-dimethylformamide (300 mL) at 50° C. was added portionwise N-chlorosuccinimide (44.1 g, 330 mmol). The temperature of the reaction mixture increased exothermically to 65° C. Then the reaction mixture was heated at 55° C. for 3 h. Additional N-chlorosuccinimide (14 g, 90 mmol) was added portionwise, and the reaction mixture was maintained at 55° C. for 30 minutes. After the reaction mixture was cooled water was added. The resulting solid was isolated by filtration, washed with water, dissolved in ethyl acetate, washed with water and dried. The solvent was removed using a rotary evaporator to afford the title product, a compound of the present invention, as a tan solid (73.68 g).
Workup
- temperatureThen the reaction mixture was heated at 55° C. for 3 h
- temperaturethe reaction mixture was maintained at 55° C. for 30 minutes
- additionwas added
- customThe resulting solid was isolated by filtration
- washwashed with water
- dissolutiondissolved in ethyl acetate
- washwashed with water
- customdried
- customThe solvent was removed
- customa rotary evaporator
Sources & evidence
- ORD record
- ord-a6cd55b9dc2b419aa87a1d9a0b62fc35
- Source dataset
- uspto-grants-2015_09
- Patent number
- US09144240B2
Linked notes
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