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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2406982Generated: October 31, 2026

Methanol → HCID 67981052, compound

https://huagongshe.com/reaction/2406982

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 67983601HCID 67983601—
SolventTetrahydrofuranHCID 8028—
ProductHCID 67981052HCID 6798105287.1%

Reaction Conditions

Temperature50 °C

Reaction Steps

Part B: A round bottom flask was charged with (±)-ethyl 4-(1-((5-(4-(trifluoromethyl)phenyl)pyrazin-2-yl)amino)butyl)benzoate (3.96 g, 8.93 mmol), MeOH (70 mL) and THF (70 mL). NaOH aq. 1M (44.6 mL) was then added in one portion and reaction stirred at room temperature for 1 hour and at 50° C. for 2 hours. Reaction mixture was cooled down to room temperature and organic solvents removed under reduced pressure. Water added to dissolve the crude solid and pH adjusted to ca. 4.5 with HCl (aq. 1N). The yellow solid formed was then recovered by filtration with a buchner funnel and dried under high vacuum to provide (±)-4-(1-((5-(4-(trifluoromethyl)phenyl)pyrazin-2-yl)amino)butyl)benzoic acid as a yellow solid (3.23 g, 87.1%). MS (M+1): 416.3.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08809342B2
Source datasetuspto-grants-2014_08
ORD IDord-62d2eea0500c4635a949823225a21dca
Source noteuspto-grants-2014_08