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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1750938Generated: November 2, 2026

Hydrochloric Acid → Ethyl 4-(4-oxo-1-phenyl-1,3,8-triazaspiro[4.5]decan-3-yl)butanoate

https://huagongshe.com/reaction/1750938

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantTert-butyl 3-(4-ethoxy-4-oxobutyl)-4-oxo-1-phenyl-1,3,8-triazaspiro[4.5]decane-8-carboxylateHCID 66652541—
Solvent1,4-DioxaneHCID 31275—
ProductEthyl 4-(4-oxo-1-phenyl-1,3,8-triazaspiro[4.5]decan-3-yl)butanoateHCID 66652313—

Reaction Steps

To tert-butyl 3-(4-ethoxy-4-oxobutyl)-4-oxo-1-phenyl-1,3,8-triazaspiro[4.5]decane-8-carboxylate (0.09 g, 0.2 mmol) was added 4M solution of HCl in dioxane (2 mL). After stirring at room temperature for 2 hours, the reaction mixture was concentrated in vacuo to obtain ethyl 4-(4-oxo-1-phenyl-1,3,8-triazaspiro[4.5]decan-3-yl)butanoate as a hydrochloride salt.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09156840B2
Source datasetuspto-grants-2015_10
ORD IDord-f7813da59b174ca98ccd90f27f9e5f27
Source noteuspto-grants-2015_10