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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2408113Generated: October 28, 2026

Hydrochloric Acid → HCID 70496288, compound

https://huagongshe.com/reaction/2408113

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHCID 70497868HCID 70497868—
SolventMethanolHCID 887—
SolventWaterHCID 962—
SolventTetrahydrofuranHCID 8028—
SolventSodium HydroxideHCID 14798—
ProductHCID 70496288HCID 7049628893.8%

Reaction Conditions

Temperature60 °C

Reaction Steps

A mixture of afford 6-fluoro-4,4-dimethyl-2-(3-pyrrolidin-1-yl-phenyl)-1,2,3,4-tetrahydro-quinoline-8-carboxylic acid methyl ester (0.32 g, 0.81 mmol) in methanol (3 mL) and tetrahydrofuran (10 mL), 30% sodium hydroxide in water (1 mL). The reaction mixture was stirred at 60° C. for 12 h. The mixture was neutralized with a 3 N aqueous hydrochloric acid solution and extracted with ethyl acetate (2×50 mL), washed with water, dried over anhydrous sodium sulfate and then concentrated in vacuo to afford 6-fluoro-4,4-dimethyl-2-(3-pyrrolidin-1-yl-phenyl)-1,2,3,4-tetrahydro-quinoline-8-carboxylic acid (0.28 g, 90%) as a white solid which was used for next step without further purification: MS (ESI) M+1=369.3.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08809369B2
Source datasetuspto-grants-2014_08
ORD IDord-329a1c9df22249b4a855a5a6badebea9
Source noteuspto-grants-2014_08