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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1446156Generated: November 2, 2026

Pyridine → HCID 24809856, compound

https://huagongshe.com/reaction/1446156

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantO-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborateHCID 2733207—
ReactantHCID 17749758HCID 17749758—
Reactant4-Isoxazolecarboxylic acid, 5-[4-(trifluoromethyl)phenyl]-HCID 68682921—
SolventAcetonitrileHCID 6342—
ProductHCID 24809856HCID 2480985655.8%

Reaction Conditions

Temperature60 °C

Reaction Steps

5-[4-(Trifluoromethyl)phenyl]isoxazole-4-carboxylic acid (30 mg, 0.12 mmol) was dissolved in acetonitrile (1.5 mL) followed by the addition of o-(benzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium tetrafluoroborate (TBTU) (52 mg, 0.16 mmol), pyridine (60 μL, 0.72 mmol) and 2-pyrrolidin-3-yl-pyrazine trihydrochloride (36 mg, 0.14 mmol), and stirred at 60° C. for 30 min. The residue was purified on reversed phase HPLC to yield the title compound (26 mg). HRMS (ESI, pos. ion) m/z calcd for C19H15F3N4O2: 388.1147, found 388.1152.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07666888B2
Source datasetuspto-grants-2010_02
ORD IDord-2883d8512b9d4b6d867afa73b881e9cf
Source noteuspto-grants-2010_02