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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 379396Generated: October 25, 2026

2-Bromoethanol → N-(3,5-Bis-trifluoromethyl-benzyl)-6-[4-(2-hydroxy-ethyl)-piperazin-1-yl]-N-methyl-4-o-tolyl-nicotinamide

https://huagongshe.com/reaction/379396

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-BromoethanolHCID 10898—
ReactantPotassium CarbonateHCID 11430—
ReactantSodium HydroxideHCID 14798—
ReactantN-(3,5-bis-trifluoromethyl-benzyl)-N-methyl-6-piperazin-1-yl-4-o-tolyl-nicotinamideHCID 10280286—
SolventAcetonitrileHCID 6342—
ProductN-(3,5-Bis-trifluoromethyl-benzyl)-6-[4-(2-hydroxy-ethyl)-piperazin-1-yl]-N-methyl-4-o-tolyl-nicotinamideHCID 993818878.7%

Reaction Conditions

Temperature45 °C

Reaction Steps

A mixture of 100 mg (0.186 mmol) N-(3,5-bis-trifluoromethyl-benzyl)-N-methyl-6-piperazin-1-yl-4-o-tolyl-nicotinamide (Example 53), 0.030 ml (0.42 mmol)2-bromo-ethanol and 46 mg (0.33 mmol) potassium carbonate in 2 ml acetonitrile was stirred at 45° C. for 70 h. After cooling to room temperature 10 ml 1 N sodium hydroxide solution were added. Extraction with 3 15-ml portions of ethyl acetate, drying with sodium sulfate and concentration gave 138 mg of the crude product. Flash column chromatography afforded 85 mg (78.6%) of the title compound as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06297375B1
Source datasetuspto-grants-2001_10
ORD IDord-911c5194d69542a1ab0ef605ba97880a
Source noteuspto-grants-2001_10