Design, synthesis, and biological evaluation of tricyclic heterocycle-tetraamine conjugates as potent NMDA channel blockers
作者:Hiromitsu Takayama、Yuichi Yaegashi、Mariko Kitajima、Xia Han、Kazuhiro Nishimura、Shigeru Okuyama、Kazuei Igarashi
DOI:10.1016/j.bmcl.2007.06.069
日期:2007.9
We have developed a new class of N-methyl-D-aspartate (NMDA) channel blockers having a conjugate structure that consists of a nitrogenous heterocyclic head and a tetraamine tail. Among them, dihydrodibenzazepine-homospermine conjugate (8) exhibited potent antagonistic activity at NR1/NR2A or NR1/NR2B NMDA subtype receptors compared with the lead compound, AQ343 (1), or memantine, as well as weak cytotoxicity. Its superior biological profiles compared with known compounds point to its potential use as therapeutic agents for neurological disorders. (c) 2007 Elsevier Ltd. All rights reserved.