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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2101322Generated: October 30, 2026

Pyrazole → HCID 16005346, compound

https://huagongshe.com/reaction/2101322

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyrazoleHCID 1048—
ReactantPotassium CarbonateHCID 11430—
ReactantN,N-DimethylethylenediamineHCID 66053—
ReactantHCID 16005345HCID 16005345—
CatalystCopper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)HCID 24350—
SolventTolueneHCID 1140—
SolventEthyl AcetateHCID 8857—
ProductHCID 16005346HCID 160053464.5%

Reaction Conditions

Temperature110 °C

Reaction Steps

A mixture of 2-((5-bromopyridin-2-yl)methyl)-7-(4-chlorophenyl)-8-(pyridin-4-yl)-[1,2,4]triazolo[4,3-a]pyridin-3(2H)-one (29.6 mg, 0.06 mmol), pyrazole (22.5 mg, 0.33 mmol), copper (I) iodide (8 mg, 0.042 mmol), potassium carbonate (25 mg, 0.18 mmol) and N,N-dimethylethylenediamine (5.3 mg, 0.06 mmol) in 1 mL toluene was heated at 110° C. under argon for 20 h. The reaction mixture was diluted with EtOAc, washed with water, brine, dried (Na2SO4) and concentrated. The crude product was purified by preparative reverse phase HPLC (with TFA) to isolate 1.3 mg of the title compound as a yellow solid. HPLC/MS: retention time=2.44 min, [M+H]+=480.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07572808B2
Source datasetuspto-grants-2009_08
ORD IDord-6d15592e739442eebe875c4a0a07863e
Source noteuspto-grants-2009_08