Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1875105Generated: November 2, 2026

1,2-Dichloroethane → HCID 178509915, compound

https://huagongshe.com/reaction/1875105

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,2-DichloroethaneHCID 11—
ReactantTrifluoroacetic acidHCID 6422—
Reactant1-HydroxybenzotriazoleHCID 75771—
ReactantSodium BicarbonateHCID 516892—
Reactant3-{[3-(Aminomethyl)-6-(difluoromethyl)-2-fluorophenyl]oxy}-5-chlorobenzonitrileHCID 68480391—
Reactant4-chloro-1-({[2-(trimethylsilyl)ethyl]oxy}methyl)-1H-imidazole-5-carboxylic acidHCID 68485533—
SolventDimethylformamideHCID 6228—
SolventDichloromethaneHCID 6344—
SolventEthyl AcetateHCID 8857—
ProductHCID 178509915HCID 17850991530.5%

Reaction Steps

A solution of 3-{[3-(aminomethyl)-6-(difluoromethyl)-2-fluorophenyl]oxy}-5-chlorobenzonitrile (0.08 g, 0.245 mmol), 4-chloro-1-({[2-(trimethylsilyl)ethyl]oxy}methyl)-1H-imidazole-5-carboxylic acid (0.068 g, 0.245 mmol), EDC (0.047 g, 0.245 mmol) and HOBT (0.037 g, 0.245 mmol) in DMF (4 ml) was stirred at RT under an atmosphere of nitrogen for 16 h then ethyl acetate (30 mL) and saturated aqueous NaHCO3 solution (30 mL) were added. The organic layer was separated, washed with saturated aqueous NaHCO3 solution (30 mL), water (30 mL), brine (30 mL), dried over MgSO4, filtered and concentrated. A solution of this residue and TFA (0.019 ml, 0.246 mmol) in dichloromethane (10 ml) was stirred at RT under an atmosphere of nitrogen for 16 h. The solvent was removed under vacuum and the resulting oil was purified by Reverse Phase HPLC (MeCN/water+0.1% TFA). The desired compound was washed with saturated aqueous NaHCO3 solution (25 mL) and extracted with ethyl acetate (25 mL). The organic layer was separated, washed with water (25 mL), brine (25 mL), dried over MgSO4, filtered and concentrated to give the title compound (0.034 g, 30%) as a white powder. 1H NMR (400 MHz, METHANOL-d4) δ ppm 7.73 (s, 1H), 7.44-7.63 (m, 3H), 7.27 (d, 2H), 6.92 (t, 1H), 4.70 (s, 2H). LC/MS m/z 453.2 (M−H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08304419B2
Source datasetuspto-grants-2012_11
ORD IDord-d5aaa45e075346249a8b06225adec923
Source noteuspto-grants-2012_11