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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1767389Generated: November 2, 2026

Hydrochloric Acid → HCID 136342488, compound

https://huagongshe.com/reaction/1767389

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHCID 22258978HCID 22258978—
SolventEthyl AcetateHCID 8857—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 136342488HCID 13634248880%

Reaction Steps

To a stirred solution of tert-butyl 3-(2-{2-(cyclopropylmethoxy)-6-[(4-methoxybenzyl)oxy]phenyl}-7-oxo-7,8-dihydro-1,8-naphthyridin-4-yl)-1-piperidine-carboxylate (0.260 g, 0.425 mmol) in 1,4-dioxane (2 mL) was added 4 N HCl in dioxane (2 mL). The mixture was stirred at room temperature overnight, and diluted with ethyl acetate. The resulting precipitate was collected by filtration, washed with ethanol, and dried under reduced pressure to give 7-[2-(cyclopropylmethoxy)-6-hydroxyphenyl]-5-(3-piperidinyl)-1,8-naphthyridin-2(1H)-one hydrochloride as a yellow solid (0.146 g, 80%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07232909B2
Source datasetuspto-grants-2007_06
ORD IDord-7bc2c08766b044ebabc52009c5a46afa
Source noteuspto-grants-2007_06