N-bromobutanimide → 6-Bromomethyl-4-(2-chloro-4-fluoro-phenyl)-2-thiazol-2-yl-1,4-dihydro-pyrimidine-5-carboxylic acid methyl ester

HRID 63672Notes

Reaction equation

HRID 63672 reaction equation
[CH3:1][O:2][C:3]([C:5]1[CH:6]([C:17]2[CH:22]=[CH:21][C:20]([F:23])=[CH:19][C:18]=2[Cl:24])[N:7]=[C:8]([C:12]2[S:13][CH:14]=[CH:15][N:16]=2)[NH:9][C:10]=1[CH3:11])=[O:4].C1C(=O)N([Br:32])C(=O)C1>C(Cl)(Cl)(Cl)Cl>[CH3:1][O:2][C:3]([C:5]1[CH:6]([C:17]2[CH:22]=[CH:21][C:20]([F:23])=[CH:19][C:18]=2[Cl:24])[N:7]=[C:8]([C:12]2[S:13][CH:14]=[CH:15][N:16]=2)[NH:9][C:10]=1[CH2:11][Br:32])=[O:4]

Participants

4

Reactant 2

HCID 67184N-bromobutanimideHCID 9820500Methyl 4-(2-Chloro-4-fluorophenyl)-6-methyl-2-(2-thiazolyl)-1,4-dihydropyrimidine-5-carboxylate

Product 1

HCID 899959636-Bromomethyl-4-(2-chloro-4-fluoro-phenyl)-2-thiazol-2-yl-1,4-dihydro-pyrimidine-5-carboxylic acid methyl ester

Reagents, catalysts & solvents 1

HCID 5943Carbon TetrachlorideSolvent

Procedure

To a stirred solution of 4-(2-chloro-4-fluoro-phenyl)-6-methyl-2-thiazol-2-yl-1,4-dihydro-pyrimidine-5-carboxylic acid methyl ester (0.37 g, 1.0 mmol) in CCl4 (5 mL) was added NBS (0.20 g, 1.1 mmol) in portions. After the reaction mixture was stirred at room temperature for 1 hour, the solvent was removed in vacuo and the residue was purified by column chromatography to give 6-bromomethyl-4-(2-chloro-4-fluoro-phenyl)-2-thiazol-2-yl-1,4-dihydro-pyrimidine-5-carboxylic acid methyl ester (Compound C) as a yellow solid. MS: calc'd 429 (MH+), measured 429 (MH+).

Workup

  1. customthe solvent was removed in vacuo
  2. customthe residue was purified by column chromatography

Sources & evidence

ORD record
ord-7bbd57be480649c3be094e9fc069e8d7
Source dataset
uspto-grants-2016_09
Patent number
US09447086B2

Reaction notes

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