Synthesis and Biology of the Conformationally Restricted ACPD Analogue, 2-Aminobicyclo[2.1.1]hexane-2,5-dicarboxylic Acid-I, a Potent mGluR Agonist
作者:Alan P. Kozikowski、Darryl Steensma、Gian Luca Araldi、Werner Tückmantel、Shaomeng Wang、Sergey Pshenichkin、Elena Surina、Jarda T. Wroblewski
DOI:10.1021/jm970719q
日期:1998.5.1
of an ACPD analogue that has been constrained through the introduction of a single carbon atom bridge. Accordingly, we have prepared an aminobicyclo[2.1.1]hexanedicarboxylic acid (ABHxD-I) analogue of ACPD. The synthesis of this compound was accomplished by use of an intramolecular [2 + 2] photocycloaddition reaction, in which four distinct isomers were isolated. Of these four compounds, only a single
为了更好地表征代谢型谷氨酸受体(mGluRs)在生理和病理生理过程中的作用,迫切需要更多地了解与设计与家族和亚型有关的新型,高亲和力配体相关的结构特征。迄今为止,在mGluR研究领域进行的许多生物学研究都使用了激动剂(1S,3R)-ACPD。已经显示出该化合物在I组和II组受体上均起激动剂的作用,而在属于这两个组的四种亚型中几乎没有选择性。此外,顺式异构体(1S,3S)-ACPD对I组受体的活性可忽略不计,是mGluR2的良好激动剂。由于ACPD本身比较灵活,我们从反式异构体的分子模型研究中确定了四个独特的构象,而从顺式异构体的五个构象中发现了五个构象,我们相信研究通过引入单个碳原子而受到约束的ACPD类似物的活性将是有意义的。桥。因此,我们制备了ACPD的氨基双环[2.1.1]己二羧酸(ABHxD-1)类似物。该化合物的合成是通过分子内[2 + 2]光环加成反应完成的,其中分离出四个不同