Sodium hydride → 1-(6-Bromo-pyridin-2-ylmethyl)-3-(3,4-dimethyl-benzoyl)-8-methyl-1H-[1,5]naphthyridin-4-one

HRID 226980Notes

Reaction equation

HRID 226980 reaction equation
[CH3:1][C:2]1[CH:3]=[C:4]([CH:19]=[CH:20][C:21]=1[CH3:22])[C:5]([C:7]1[C:16](=[O:17])[C:15]2[C:10](=[C:11]([CH3:18])[CH:12]=[CH:13][N:14]=2)[NH:9][CH:8]=1)=[O:6].[H-].[Na+].[Br:25][C:26]1[CH:31]=[CH:30][CH:29]=[C:28]([CH2:32]Br)[N:27]=1>CN(C)C=O>[Br:25][C:26]1[N:27]=[C:28]([CH2:32][N:9]2[C:10]3[C:15](=[N:14][CH:13]=[CH:12][C:11]=3[CH3:18])[C:16](=[O:17])[C:7]([C:5](=[O:6])[C:4]3[CH:19]=[CH:20][C:21]([CH3:22])=[C:2]([CH3:1])[CH:3]=3)=[CH:8]2)[CH:29]=[CH:30][CH:31]=1

Participants

5

Reactant 3

HCID 24758Sodium hydrideHCID 129547962-Bromo-6-(bromomethyl)pyridineHCID 577545613-(3,4-Dimethyl-benzoyl)-8-methyl-1H-[1,5]naphthyridin-4-one

Product 1

HCID 577546901-(6-Bromo-pyridin-2-ylmethyl)-3-(3,4-dimethyl-benzoyl)-8-methyl-1H-[1,5]naphthyridin-4-one

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

Experimental conditions analogous to described for Step 3 of Example 1 were used with 93 mg (0.318 mmol) of 3-(3,4-Dimethyl-benzoyl)-8-methyl-1H-[1,5]naphthyridin-4-one, 15 mg (0.382 mmol, 60% dispersion in oil) of sodium hydride, 95.8 mg (0.382 mmol) of 2-bromo-6-bromomethyl-pyridine and 3.0 mL of N,N-dimethylformamide. The crude brown solid was purified by flash column chromatography using 30-100% ethyl acetate in hexane to yield 1-(6-Bromo-pyridin-2-ylmethyl)-3-(3,4-dimethyl-benzoyl)-8-methyl-1H-[1,5]naphthyridin-4-one as an off white solid. LC-MSD, m/z for C24H20BrN3O2 [M+H]: 462.07 LC retention time on HPLC, C18 column gradient 20-95% acetonitrile with 0.1% TFA in 4 minutes: 3.0 min.

Workup

  1. customThe crude brown solid was purified by flash column chromatography

Sources & evidence

ORD record
ord-7505f44693e84c3dadceb2247f12600a
Source dataset
uspto-grants-2009_07
Patent number
US07557213B2

Reaction notes

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