193882-74-5Relevant articles and documents
Synthesis and structure-activity relationship studies of conformationally flexible tetrahydroisoquinolinyl triazole carboxamide and triazole substituted benzamide analogues as σ2 receptor ligands
Bai, Suping,Li, Shihong,Xu, Jinbin,Peng, Xin,Sai, Kiran,Chu, Wenhua,Tu, Zhude,Zeng, Chenbo,Mach, Robert H.
supporting information, p. 4239 - 4251 (2014/06/09)
Two novel classes of compounds targeting the sigma-2 (σ2) receptor were synthesized, and their bioactivities to binding σ1 and σ2 receptors were measured. Four novel triazole carboxamide analogues, 24d, 24e, 24f, and 39c, demonstrated high affinity and selectivity for the σ2 receptor. These data suggest 11C-labeled versions of these compounds may be potential σ2-selective radiotracers for imaging the proliferative status of solid tumors.
Synthesis and 5-HT-3 receptor binding activity of 5-[125I]iodo-2,3-dimethoxy-N-(1-azabicyclo[2.2.2]oct-3-yl]benzamide and its 5-halogen-2-alkoxyl homologues
De Paulis,Hewlett,Schmidt,Mason,Trivedi,Ebert
, p. 385 - 396 (2007/10/03)
(S)-5-Iodo-2,3-dimethoxy-N-(1-azabicyclo[2.2.2]oct-3-yl)benzamide (MIZAC) was prepared from 5-iodo-2,3-dimethoxybenzoyl chloride and (S)-3-aminoquinuclidine. [125I]Iodode-stannylation of its corresponding 5-tri-n-butyltin derivative gave [125I]-MIZAC at 1800 Ci/mmol. Binding of [125I]-MIZAC in rat entorhinal cortex revealed a K(D) of 1.37 ± 0.21 nM. A series of racemic 2-O-alkyl derivatives of MIZAC were prepared and 5-HT-3 receptor affinities were determined by inhibition of [125I]-MIZAC binding. Optimal affinity for the receptor was obtained with small, electron-withdrawing substituents in the aromatic 5-position and with bulky substituents in the 3-position. [125I]-MIZAC is a selective radioligand useful for in vitro identification of the 5-HT-3 receptor.