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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1373546Generated: October 31, 2026

4-((7-Oxo-5,6,7,8-tetrahydro-1,8-naphthyridin-2-yl)oxy)butanal → 7-{4-[4-(6,7,8,9-Tetrahydro-5H-benzocyclohepten-1-yl)-piperazin-1-yl]-butoxy}-3,4-dihydro-1H-[1,8]naphthyridin-2-one

https://huagongshe.com/reaction/1373546

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-((7-Oxo-5,6,7,8-tetrahydro-1,8-naphthyridin-2-yl)oxy)butanalHCID 21073377—
ReactantHCID 21701862HCID 21701862—
Product7-{4-[4-(6,7,8,9-Tetrahydro-5H-benzocyclohepten-1-yl)-piperazin-1-yl]-butoxy}-3,4-dihydro-1H-[1,8]naphthyridin-2-oneHCID 21073719—

Reaction Steps

In a manner similar to that of other examples above, 6,7,8,9-tetrahydro-5H-benzocyclohepten-1-ylamine (0.178 g) was coupled by reductive amination to 4-(7-oxo-5,6,7,8-tetrahydro-[1,8]naphthyridin-2-yloxy)-butyraldehyde followed by typical workup and purification to give the title compound as the hydrochloride salt (0.109 g). MS: APCI: M+1: 449.3 (Exact Mass: 448.26).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07160888B2
Source datasetuspto-grants-2007_01
ORD IDord-53a44c34cedc457a905657033e0c3dfd
Source noteuspto-grants-2007_01