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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2048205Generated: October 25, 2026

Pyridine → 3'-Fluoro-4'-({4-[4-(1-methylethoxy)phenyl]-5-oxo-7-propyl-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl}methyl)biphenyl-2-carbonitrile

https://huagongshe.com/reaction/2048205

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantTriethylamineHCID 8471—
Reactant4-Isopropoxybenzeneboronic acidHCID 3698726—
Reactant3'-Fluoro-4'-[(5-oxo-7-propyl-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl)methyl]biphenyl-2-carbonitrileHCID 136337139—
CatalystCupric acetateHCID 8895—
SolventDichloromethaneHCID 6344—
SolventEthyl AcetateHCID 8857—
Product3'-Fluoro-4'-({4-[4-(1-methylethoxy)phenyl]-5-oxo-7-propyl-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl}methyl)biphenyl-2-carbonitrileHCID 67008698100%

Reaction Steps

To a suspension (20 mL) of 3′-fluoro-4′-[(5-oxo-7-propyl-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl)methyl]biphenyl-2-carbonitrile (0.5 g), [4-(1-methylethoxy)phenyl]boronic acid (0.46 g), triethylamine (0.5 mL), pyridine (1 mL) and molecular sieves 4A (1 g) in dichloromethane was added copper(II) acetate (0.47 g), and the mixture was stirred for 16 hr. The reaction mixture was diluted with ethyl acetate, insoluble material was filtered off through celite, and the filtrate was concentrated. The residue was purified by silica gel column chromatography to give the title compound as a colorless solid (0.59 g, 100%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08592431B2
Source datasetuspto-grants-2013_11
ORD IDord-ba92725bb1284f18be2d13940f32891a
Source noteuspto-grants-2013_11