Diisopropylethylamine → 5-[[2-(dimethylamino)-2-oxoethyl](methyl)amino]-N-(4-fluorobenzyl)-8-hydroxy-1,6-naphthyridine-7-carboxamide

HRID 897302Notes

Reaction equation

Br[C:2]1[N:11]=[C:10]([C:12]([NH:14][CH2:15][C:16]2[CH:21]=[CH:20][C:19]([F:22])=[CH:18][CH:17]=2)=[O:13])[C:9]([OH:23])=[C:8]2[C:3]=1[CH:4]=[CH:5][CH:6]=[N:7]2.[CH3:24][N:25]([CH3:31])[C:26](=[O:30])[CH2:27][NH:28][CH3:29].C(N(CC)C(C)C)(C)C>CN(C=O)C>[CH3:24][N:25]([CH3:31])[C:26](=[O:30])[CH2:27][N:28]([CH3:29])[C:2]1[N:11]=[C:10]([C:12]([NH:14][CH2:15][C:16]2[CH:21]=[CH:20][C:19]([F:22])=[CH:18][CH:17]=2)=[O:13])[C:9]([OH:23])=[C:8]2[C:3]=1[CH:4]=[CH:5][CH:6]=[N:7]2

Participants

Conditions

Temperature: 135 °C

Procedure

Into a 10 mL pressure vessel equipped with a magnetic stir bar was placed 0.1 g (0.266 mmol) 5-bromo-N-(4-fluorobenzyl)-8-hydroxy-1,6-naphthyridine-7-carboxamide (see Example 126), 0.031 g (0.27 mmol) N,N-dimethyl-2-(methylamino)acetamide, 0.726 mL (0.8 mmol) N,N-diisopropylethylamine and 5 mL DMF. The vessel was sealed and heated on an oil bath to 135° C. for 18 hrs., after which the mixture was cooled and the solvent removed in vacuo. The residue was purified by reverse phase HPLC on a C18 column using acetonitrile/water as eluent to give 5-[[2-(dimethylamino)-2-oxoethyl](methyl)amino]-N-(4-fluorobenzyl)-8-hydroxy-1,6-naphthyridine-7-carboxamide.

Workup

customInto a 10 mL pressure vessel equipped with a magnetic stir bar
customThe vessel was sealed
temperature, after which the mixture was cooled
customthe solvent removed in vacuo
customThe residue was purified by reverse phase HPLC on a C18 column

Sources & evidence

ORD record: ord-f650dd53b06a455094f07ddcb819e93b
Source dataset: uspto-grants-2005_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06921759B2

Reaction notes

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