Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2092411Generated: October 26, 2026

Triethylamine → (4'-{3-Methyl-4-[1-(2-trifluoromethyl-phenyl)-ethoxycarbonylamino]-isoxazol-5-yl}-biphenyl-4-yl)-acetic acid ethyl ester

https://huagongshe.com/reaction/2092411

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantP,P-Diphenylphosphinic azideHCID 199401—
Reactant1-(2-(Trifluoromethyl)phenyl)ethanolHCID 522725—
Reactant5-(4'-Ethoxycarbonylmethyl-biphenyl-4-yl)-3-methyl-isoxazole-4-carboxylic acidHCID 58539569—
SolventTolueneHCID 1140—
Product(4'-{3-Methyl-4-[1-(2-trifluoromethyl-phenyl)-ethoxycarbonylamino]-isoxazol-5-yl}-biphenyl-4-yl)-acetic acid ethyl esterHCID 67352129—

Reaction Conditions

Temperature80 °C

Reaction Steps

5-(4′-Ethoxycarbonylmethyl-biphenyl-4-yl)-3-methyl-isoxazole-4-carboxylic acid (0.150 g, 0.41 mmol), alpha-methyl-2-trifluoromethylbenzyl alcohol (0.094 g, 0.49 mmol), diphenylphosphoryl azide (0.11 mL, 0.49 mmol), and triethylamine (0.11 mL, 0.49 mmol) were combined in toluene (3 mL) and stirred at 80° C. for 2 hours. After cooling, the mixture was worked-up to give the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08440707B2
Source datasetuspto-grants-2013_05
ORD IDord-4fd4b78e08a84fd18df43d59a023d0ac
Source noteuspto-grants-2013_05