Bromobenzene → 1,6-dimethyl-4-hydroxy-N-(5-methylthiazol-2-yl)-2-oxo-1,2-dihydropyridine-3-carboxamide

HRID 1873737Notes

Reaction equation

HRID 1873737 reaction equation
[CH3:1][N:2]1[C:7]([CH3:8])=[CH:6][C:5]([OH:9])=[C:4]([C:10]([O:12]CC)=O)[C:3]1=[O:15].[NH2:16][C:17]1[S:18][C:19]([CH3:22])=[CH:20][N:21]=1.BrC1C=CC=CC=1>>[CH3:1][N:2]1[C:7]([CH3:8])=[CH:6][C:5]([OH:9])=[C:4]([C:10]([NH:16][C:17]2[S:18][C:19]([CH3:22])=[CH:20][N:21]=2)=[O:12])[C:3]1=[O:15]

Participants

4

Reactant 3

HCID 7961BromobenzeneHCID 3517702-Amino-5-methylthiazoleHCID 57619607Ethyl 1,6-dimethyl-4-hydroxy-2-oxo-1,2-dihydropyridine-3-carboxylate

Product 1

HCID 576196381,6-dimethyl-4-hydroxy-N-(5-methylthiazol-2-yl)-2-oxo-1,2-dihydropyridine-3-carboxamideYield 73.2%

Procedure

212 mg of ethyl 1,6-dimethyl-4-hydroxy-2-oxo-1,2-dihydropyridine-3-carboxylate and 105 mg of 2-amino-5-methylthiazole were added to 2.5 ml of bromobenzene, then, the mixture was stirred for 5.5 hours under heat refluxing condition. The reaction mixture was cooled to room temperature. The resulting solid was collected by filtration, and washed with a mixed solvent of t-butyl methyl ether and hexane and dried to obtain 188 mg of 1,6-dimethyl-4-hydroxy-N-(5-methylthiazol-2-yl)-2-oxo-1,2-dihydropyridine-3-carboxamide (hereinafter, referred to as present compound 20) represented by the formula:

Workup

  1. temperatureunder heat
  2. temperaturerefluxing condition
  3. filtrationThe resulting solid was collected by filtration
  4. washwashed with a mixed solvent of t-butyl methyl ether and hexane
  5. customdried

Sources & evidence

ORD record
ord-39f27c00fe444e46a70745a4d7e3b9eb
Source dataset
uspto-grants-2012_11
Patent number
US08304437B2

Reaction notes

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