Novel indole-2-carboxylates as ligands for the strychnine-insensitive N-methyl-D-aspartate-linked glycine receptor
作者:Nancy M. Gray、Michael S. Dappen、Brian K. Cheng、Alexis A. Cordi、John P. Biesterfeldt、William F. Hood、Joseph B. Monahan
DOI:10.1021/jm00108a007
日期:1991.4
their ability to inhibit the binding at the strychnine-insensitive glycine receptor that is associated with the NMDA-PCP-glycine receptor complex. All of the compounds were selective for the glycine site relative to other sites on the receptor macrocomplex and several of the compounds in this series were found to have submicromolar affinity for this receptor. The lead compound, 2-carboxy-6-chloro-3-indoleacetic
制备了一系列吲哚-2-羧酸盐,并评估了它们抑制与NMDA-PCP-甘氨酸受体复合物相关的对苯丙氨酸不敏感的甘氨酸受体结合的能力。相对于受体大分子复合物上的其他位点,所有化合物对甘氨酸位点均具有选择性,并且发现该系列中的某些化合物对该受体具有亚微摩尔的亲和力。还发现前导化合物2-羧基-6-氯-3-吲哚乙酸(Ki = 1.6 microM对[3H]甘氨酸)非竞争性地抑制MK-801的结合,MK-801是受体上苯环利定位点的配体宏复合体。这些后面的数据表明该化合物在对士的宁不敏感的甘氨酸受体上起拮抗剂的作用。讨论了吲哚-2-羧酸系列中的结构活性关系,并确定了该系列甘氨酸配体的几个关键药效团。通常,最有效的化合物是C-3乙酰胺,其中N-丙基-2-羧基-6-氯-3-吲哚乙酰胺具有最高的受体亲和力。