Water → 7-(2,4-Dimethoxy-benzyl)-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid methylamide

HRID 919772Notes

Reaction equation

C[O:2][C:3]([C:5]1[N:6]=[CH:7][C:8]2[C:9](=[O:27])[N:10]([CH2:16][C:17]3[CH:22]=[CH:21][C:20]([O:23][CH3:24])=[CH:19][C:18]=3[O:25][CH3:26])[CH:11]=[CH:12][C:13]=2[C:14]=1[OH:15])=O.[CH3:28][NH2:29].O>CCO>[CH3:28][NH:29][C:3]([C:5]1[N:6]=[CH:7][C:8]2[C:9](=[O:27])[N:10]([CH2:16][C:17]3[CH:22]=[CH:21][C:20]([O:23][CH3:24])=[CH:19][C:18]=3[O:25][CH3:26])[CH:11]=[CH:12][C:13]=2[C:14]=1[OH:15])=[O:2]

Participants

Conditions

Temperature: 80 °C

Procedure

A mixture of 7-(2,4-dimethoxy-benzyl)-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid methyl ester (20 mg, 0.054 mmol) and methylamine (0.8 mL, 2M in THF) in EtOH (2 mL) was heated in a sealed tube at 80° C. for 16 h. After cooling the mixture to r.t., water (2 mL) was added. The resulting precipitate was isolated by filtration, washed with cold MeOH/H2O (5 mL, 1:1), and dried under vacuum to give 9 mg of the title compound. MS: (+) m/z 370.28 (M+1).

Workup

temperatureAfter cooling the mixture to r.t.
customThe resulting precipitate was isolated by filtration
washwashed with cold MeOH/H2O (5 mL, 1:1)
customdried under vacuum

Sources & evidence

ORD record: ord-e4f75cad37374946b13903c8b6fa22be
Source dataset: uspto-grants-2016_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09271970B2

Reaction notes

Loading…