Synthesis of a Novel Water-Soluble Cleft-Type Cyclophane as an N-Methyl-D-aspartate Receptor Antagonist
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概要
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Novel water-soluble N-methyl-D-aspartate (NMDA) receptor antagonists, 4,4'-bis({2-[N-(1,4,8,11-tetraazacyclotetradecan-1-yl)acetyl]-N-phenethyl}aminoethoxy) diphenylmethane octahydrochloride (1, ACPCm) and 4,4'-bis({2-[N-(1,4,7,10-tetraazacyclododecan-1-yl)acetyl]-N-phenethyl}aminoethoxy) diphenylmethane octahydrochloride (2, ACPCn), were synthesized and the effect of these cleft-type cyclophanes on NMDA receptors was then studied using voltage-clamp recordings of recombinant NMDA receptors expressed in Xenopus oocytes. ACPCm (1) and ACPCn (2) inhibited macroscopic currents in the NR1/NR2A, NR1/NR2B, NR1/NR2C and NR1/NR2D receptor subtypes in oocytes voltage-clamped at -70mV. The IC_<50> values of ACPCm (1) and ACPCn (2) for NR1/NR2A and NR1/NR2B receptors were 1.06μM and, 0.92μM and 1.47μM and, 1.49μM, respectively. The inhibition by these compounds was voltage-dependent, that is, the degree of inhibition was in the order of negative holding potentials, -100mV>-70mV>-20mV. These findings indicate that the cleft-type cyclophanes, ACPCm (1) and ACPCn (2) directly act on the channel pore of the NMDA receptors.
- 公益社団法人日本薬学会の論文
- 2009-01-01
著者
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Kusama T
Laboratory Of Physiology And Anatomy College Of Pharmacy Nihon University
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Kusama Tadashi
School Of Pharmacy Nihon Univ.
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Kusama Tadashi
Department Of Physiology And Anatomy Nihon University College Of Pharmacy
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MASUKO Takashi
College of Pharmacy, Nihon University
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KUSAMA Tadashi
College of Pharmacy, Nihon University
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NAMIKI Rie
College of Pharmacy, Nihon University
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METORI Koichi
College of Pharmacy, Nihon University
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KIZAWA Yasuo
College of Pharmacy, Nihon University
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MIYAKE Muneharu
College of Pharmacy, Nihon University
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Kizawa Yasuo
School Of Pharmacy Nihon Univ.
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Kizawa Yasuo
Department Of Physiology And Anatomy Nihon University College Of Pharmacy
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Metori Koichi
College Of Pharmacy Nihon University
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Miyake Muneharu
College Of Pharmacy Nihon University
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Miyake Muneharu
School Of Pharmacy Nihon Univ.
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Namiki Rie
College Of Pharmacy Nihon University
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