N-bromobutanimide → 6-Amino-5-bromo-2-(4-chloro-2-fluoro-3-methoxyphenyl)-pyrimidine-4-carboxylic acid methyl ester

HRID 495034Notes

Reaction equation

HRID 495034 reaction equation
[CH3:1][O:2][C:3]([C:5]1[CH:10]=[C:9]([NH2:11])[N:8]=[C:7]([C:12]2[CH:17]=[CH:16][C:15]([Cl:18])=[C:14]([O:19][CH3:20])[C:13]=2[F:21])[N:6]=1)=[O:4].[Br:22]N1C(=O)CCC1=O>C(Cl)(Cl)Cl>[CH3:1][O:2][C:3]([C:5]1[C:10]([Br:22])=[C:9]([NH2:11])[N:8]=[C:7]([C:12]2[CH:17]=[CH:16][C:15]([Cl:18])=[C:14]([O:19][CH3:20])[C:13]=2[F:21])[N:6]=1)=[O:4]

Participants

4

Reactant 2

HCID 67184N-bromobutanimideHCID 594320836-Amino-2-(4-chloro-2-fluoro-3-methoxyphenyl)pyrimidine-4-carboxylic acid methyl ester

Product 1

HCID 594321166-Amino-5-bromo-2-(4-chloro-2-fluoro-3-methoxyphenyl)-pyrimidine-4-carboxylic acid methyl esterYield 77%

Reagents, catalysts & solvents 1

HCID 6212ChloroformSolvent

Procedure

6-Amino-2-(4-chloro-2-fluoro-3-methoxy-phenyl)-pyrimidine-4-carboxylic acid methyl ester (778 mg, 2.5 mmol) and N-bromosuccinimide (489 mg, 2.75 mmol) were combined in chloroform and heated at reflux for 12 hours. The cooled reaction mixture was concentrated and the product was isolated by column chromatography to yield 6-amino-5-bromo-2-(4-chloro-2-fluoro-3-methoxyphenyl)pyrimidine-4-carboxylic acid methyl ester (752 mg, 77% yield): mp 173-175° C.: 1H NMR (CDCl3): δ 7.66 (dd, 1H), 7.24 (dd, 1H), 5.73 (br s, 2H), 4.03 (s, 3H), 4.01 (d, 3H).

Workup

  1. temperatureheated
  2. temperatureat reflux for 12 hours
  3. customThe cooled reaction mixture
  4. concentrationwas concentrated
  5. customthe product was isolated by column chromatography

Sources & evidence

ORD record
ord-8fbd26a47445436891e5bc05e3df501f
Source dataset
uspto-grants-2009_05
Patent number
US07538214B2

Reaction notes

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