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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 919721Generated: October 30, 2026

Acetic Acid → 7-Benzyl-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid (pyridin-4-ylmethyl)-amide

https://huagongshe.com/reaction/919721

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
ReactantWaterHCID 962—
Reactant4-PyridinemethanamineHCID 77317—
Reactant7-Benzyl-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid methyl esterHCID 68297735—
SolventEthanolHCID 702—
Product7-Benzyl-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid (pyridin-4-ylmethyl)-amideHCID 6015084765.7%

Reaction Conditions

Temperature79 °C

Reaction Steps

A mixture of 7-benzyl-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid methyl ester (40 mg, 0.13 mmol) and 4-(aminomethyl)-pyridine (0.050 mL, 0.45 mmol) in 2 mL of EtOH was heated at 79° C. for 4 h. Acetic acid (0.1 mL) and water (3 mL) were added, and the resulting suspension was allowed to come to r.t. The solid was isolated by filtration and dried under high vacuum to afford 33 mg of the title compound as a light yellow solid. MS: (+) m/z 386.40 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09271970B2
Source datasetuspto-grants-2016_03
ORD IDord-c9e8425ceb294867b17e0e4e8c816fa3
Source noteuspto-grants-2016_03