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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 420905Generated: November 1, 2026

Pyridine → 1-(4-Diethylaminophenyl)-2-ethoxycarbonylmethyl-5-(4-trifluoromethylphenoxy)indole-3-carboxylic acid ethyl ester

https://huagongshe.com/reaction/420905

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantTriethylamineHCID 8471—
Reactant4-(Trifluoromethyl)phenylboronic acidHCID 2734389—
Reactant1-(4-Diethylaminophenyl)-2-ethoxycarbonylmethyl-5-hydroxyindole-3-carboxylic acid ethyl esterHCID 66657627—
CatalystCupric acetateHCID 8895—
SolventDichloromethaneHCID 6344—
Product1-(4-Diethylaminophenyl)-2-ethoxycarbonylmethyl-5-(4-trifluoromethylphenoxy)indole-3-carboxylic acid ethyl esterHCID 66657632—

Reaction Steps

A mixture of 1-(4-diethylaminophenyl)-2-ethoxycarbonylmethyl-5-hydroxyindole-3-carboxylic acid ethyl ester (200 mg, 0.46 mmol, see step (b) above), Cu(OAc)2 (83 mg, 0.46 mmol), 4-trifluoromethylbenzeneboronic acid (129 mg, 0.68 mmol), pyridine (55 μL, 0.68 mmol), Et3N (94 μL, 0.68 mmol), molecular sieves 4 Å and anhydrous CH2Cl2 (10 mL) was stirred at rt for 2 d, filtered, concentrated and purified by chromatography to give the sub-title compound. Yield 150 mg, 56%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08097623B2
Source datasetuspto-grants-2012_01
ORD IDord-86aa35b4edab44f7adb188f9fdfdee87
Source noteuspto-grants-2012_01