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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1666480Generated: October 27, 2026

Water → N-(Pyridin-3-yl)-4-(1-(3-(5-(trifluoromethyl)pyridin-2-yloxy)phenyl)ethylidene)piperidine-1-carboxamide

https://huagongshe.com/reaction/1666480

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantTriethylamineHCID 8471—
ReactantPhenyl pyridin-3-ylcarbamateHCID 6935890—
Reactant2-(3-(1-(Piperidin-4-ylidene)ethyl)phenoxy)-5-(trifluoromethyl)pyridine trifluoroacetateHCID 86623912—
SolventDimethyl SulfoxideHCID 679—
ProductN-(Pyridin-3-yl)-4-(1-(3-(5-(trifluoromethyl)pyridin-2-yloxy)phenyl)ethylidene)piperidine-1-carboxamideHCID 2496763866.6%

Reaction Conditions

Temperature60 °C

Reaction Steps

To a solution of phenyl pyridin-3-ylcarbamate (120 mg, 0.562 mmol) in DMSO (5 mL) was added 2-(3-(1-(piperidin-4-ylidene)ethyl)phenoxy)-5-(trifluoromethyl)pyridine trifluoroacetate (260 mg, 0.516 mmol), followed by triethylamine (0.16 mL, 1.12 mmol). The reaction was stirred at 60° C. overnight. Water was added and the mixture was extracted with EtOAc. The combined organic layers were washed with brine, dried over MgSO4 and concentrated. The residue was purified by silica gel column chromatography (0-5% MeOH/CH2Cl2) to give the title compound (161 mg, 61% yield) as a clear oil which formed a foam under high vacuum. MS (APCI 10V) AP+ 469.18; 1H NMR (400 MHz, DMSO-d6) δ ppm 1.99 (s, 3H) 2.31 (t, 2H) 2.50 (t, 2H) 3.40 (t, 2H) 3.61 (t, 2H) 6.63 (br. s., 1H) 6.89 (t, 1H) 6.97-7.04 (m, 3H) 7.17-7.22 (m, 1H) 7.37 (t, 1H) 7.89 (dd, 1H) 7.96 (dd, 1H) 8.23 (dd, 1H) 8.41 (dd, 2H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08044052B2
Source datasetuspto-grants-2011_10
ORD IDord-aac26a3651604e7fa545b70b0e080c69
Source noteuspto-grants-2011_10