Article · Wikipedia archive · Last revised Jun 13, 2026

N-Ethoxycarbonyl-2-ethoxy-1,2-dihydroquinoline

N-Ethoxycarbonyl-2-ethoxy-1,2-dihydroquinoline (EEDQ) is a dopamine-receptor antagonist.

Last revised
Jun 13, 2026
Read time
≈ 1 min
Length
189 w
Citations
4
Source
N-Ethoxycarbonyl-2-ethoxy-1,2-dihydroquinoline1
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Names
Preferred IUPAC name
Ethyl 2-ethoxyquinoline-1(2H)-carboxylate
Other names
Ethyl 1,2-dihydro-2-ethoxyquinoline-1-carboxylate
Identifiers
3D model (JSmol)
Abbreviations EEDQ
ChEMBL
ChemSpider
ECHA InfoCard 100.036.728
EC Number
  • 240-418-2
UNII
  • InChI=1S/C14H17NO3/c1-3-17-13-10-9-11-7-5-6-8-12(11)15(13)14(16)18-4-2/h5-10,13H,3-4H2,1-2H3
    Key: GKQLYSROISKDLL-UHFFFAOYSA-N
  • CCOC1C=CC2=CC=CC=C2N1C(=O)OCC
Properties
C14H17NO3
Molar mass 247.29 g/mol
Melting point 62 to 67 °C (144 to 153 °F; 335 to 340 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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N-Ethoxycarbonyl-2-ethoxy-1,2-dihydroquinoline (EEDQ) is a dopamine-receptor antagonist.2

EEDQ is also a highly specific reagent for carboxyl groups. It enables the coupling of acylamino acids with amino acid esters in high yield and without racemization.3

It is also an irreversible dopamine transporter (DAT) blocker in vitro, though it is ineffective in vivo.4

References

References

  1. 2-Ethoxy-1-ethoxycarbonyl-1,2-dihydroquinoline at Sigma-Aldrich
  2. Neuroscience Letters 1992, 137(2), p.265
  3. https://www.bachem.com/
  4. Tarazi FI, Kula NS, Zhang K, Baldessarini RJ (August 2000). "Alkylation of rat dopamine transporters and blockade of dopamine uptake by EEDQ". Neuropharmacology. 39 (11): 2133–8. doi:10.1016/s0028-3908(00)00047-2. PMID 10963756.