Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 554659Generated: October 27, 2026

Hydrochloric Acid → [5-(2-Ethylaminomethyl-4-trifluoromethyl-phenyl)-pyridin-3-yl]-acetic acid ethyl ester, dihydrochloride

https://huagongshe.com/reaction/554659

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHCID 67212500HCID 67212500—
SolventEthyl AcetateHCID 8857—
Solvent1,4-DioxaneHCID 31275—
Product[5-(2-Ethylaminomethyl-4-trifluoromethyl-phenyl)-pyridin-3-yl]-acetic acid ethyl ester, dihydrochlorideHCID 131729247—

Reaction Conditions

Temperature50 °C

Reaction Steps

To (5-{2-[(N-tert-butoxycarbonyl-N-ethyl-amino)-methyl]-4-trifluoromethyl-phenyl}-pyridin-3-yl)-acetic acid ethyl ester (0.375 g, 0.8 mmol) in EtOAc (4 mL) was added 4N HCl in 1,4-dioxane (0.8 mL), and the reaction was stirred at 50° C. for 1 hour. Additional 4N HCl in 1,4-dioxane (0.8 mL) was added, and the reaction was stirred for 1 hour at 70° C. The mixture was concentrated to give [5-(2-ethylaminomethyl-4-trifluoromethyl-phenyl)-pyridin-3-yl]-acetic acid ethyl ester, dihydrochloride.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08049015B2
Source datasetuspto-grants-2011_11
ORD IDord-e57cf283ebc14618be9dcb9a9324ee95
Source noteuspto-grants-2011_11