Identification and synthesis of [1,2,4]triazolo[3,4-a]phthalazine derivatives as high-affinity ligands to the α2δ-1 subunit of voltage gated calcium channel
作者:Alec D. Lebsack、Janet Gunzner、Bowei Wang、Richard Pracitto、Hervé Schaffhauser、Angelina Santini、Jayashree Aiyar、Robert Bezverkov、Benito Munoz、Wensheng Liu、Shankar Venkatraman
DOI:10.1016/j.bmcl.2004.03.008
日期:2004.5
We have identified and synthesized a series of [1,2,4]triazolo[3,4-a]phthalazine derivatives as high-affinity ligands to alpha(2)delta-1 subunit of voltage gated calcium channels. Structure-activity relationship studies directed toward improving the potency and physical properties of 2 lead to the discovery of 20 (IC50 = 15 nM) and (S)-22 (IC50 = 30 nM). A potent and selective radioligand, [H-3]-(S)-22 was also synthesized to demonstrate that this ligand binds to the same site as gabapentin. (C) 2004 Elsevier Ltd. All rights reserved.