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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1785985Generated: October 29, 2026

Hydrochloric Acid → HCID 68918824, compound

https://huagongshe.com/reaction/1785985

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPotassium HydroxideHCID 14797—
ReactantHCID 86601701HCID 86601701—
SolventEthanolHCID 702—
SolventWaterHCID 962—
ProductHCID 68918824HCID 68918824—

Reaction Conditions

Temperature70 °C

Reaction Steps

To a solution of 2-[{(2S,4R)-1-[3,5-bis(trifluoromethyl)benzoyl]-2-methyl-1,2,3,4-tetrahydroquinolin-4-yl}(4-chlorophenyl)amino]-2-oxoethyl acetate (500 mg, 0.82 mmol, 1 equ.) in ethanol (6 mL) and water (1 mL) was added potassium hydroxide (229 mg, 4.1 mmol, 5 equ.). The mixture was heated to 70° C. for 4 h. The mixture was neutralized with 1N aqueous HCl and extracted with ethyl acetate. The organic layer was separated, washed with a saturated aqueous solution of sodium bicarbonate and twice with brine, dried over sodium sulfate, filtered and concentrated to give crude N-(4-chlorophenyl)-2-hydroxy-N-[(2S,4R)-2-methyl-1,2,3,4-tetrahydroquinolin-4-yl]acetamide used as such in the next step.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07504508B2
Source datasetuspto-grants-2009_03
ORD IDord-bb6a2808ad384237b06f54398dc5aa61
Source noteuspto-grants-2009_03