Design and Synthesis of a Novel Water-Soluble NMDA Receptor Antagonist with a 1,4,7,10-Tetraazacyclododecane Group
作者:Takashi Masuko、Koichi Metori、Yasuo Kizawa、Tadashi Kusama、Muneharu Miyake
DOI:10.1248/cpb.53.444
日期:——
Polyamines, especially spermine, inhibit N-methyl-D-aspartate (NMDA) receptors as open channel blockers. Two types of water-soluble NMDA receptor antagonist, ACCn (1) and TGCn (2), with a 1,4,7,10-tetraazacyclododecane cyclic polyamine group, were synthesized and the effects of both compounds on NMDA receptors were studied using voltage-clamp recordings of recombinant NMDA receptors expressed in Xenopus oocytes. These compounds inhibited macroscopic currents in both NR1/NR2A and NR1/NR2B receptor subtypes in oocytes voltage-clamped at −70 mV. Inhibition by the compounds of NR1/NR2A receptors were more prominent than that of NR1/NR2B receptors. The inhibitory effects of ACCn (1) on both NMDA receptors were more potent than those of TGCn (2).
多胺,尤其是精胺,作为开放通道阻滞剂抑制 N-甲基-<小>D小>-天冬氨酸 (NMDA) 受体。合成了两种具有1,4,7,10-四氮杂环十二烷环状多胺基团的水溶性NMDA受体拮抗剂ACCn (1)和TGCn (2),并利用电压研究了两种化合物对NMDA受体的影响-非洲爪蟾卵母细胞中表达的重组 NMDA 受体的钳记录。这些化合物抑制电压钳位在-70 mV的卵母细胞中NR1/NR2A和NR1/NR2B受体亚型的宏观电流。 NR1/NR2A受体化合物的抑制作用比NR1/NR2B受体化合物更显着。 ACCn (1) 对两种 NMDA 受体的抑制作用比 TGCn (2) 更有效。