Synthesis and Pharmacological Characterization of All Sixteen Stereoisomers of 2-(2‘-Carboxy-3‘-phenylcyclopropyl)glycine. Focus on (2<i>S</i>,1‘<i>S</i>,2‘<i>S</i>,3‘<i>R</i>)-2-(2‘-Carboxy-3‘-phenylcyclopropyl)glycine, a Novel and Selective Group II Metabotropic Glutamate Receptors Antagonist
作者:Roberto Pellicciari、Maura Marinozzi、Benedetto Natalini、Gabriele Costantino、Roberto Luneia、Gianluca Giorgi、Flavio Moroni、Christian Thomsen
DOI:10.1021/jm960059+
日期:1996.1.1
All 16 2-(2'-carboxy-3'-phenylcyclopropyl)glycine (PCCGs) stereoisomers 32-47 have been prepared from the corresponding racemic aldehydes 12-15 following an enantiodivergent synthetic protocol. Compounds 32-47 were evaluated by a number of binding and functional experiments as potential ligands for several classes of excitatory amino acid receptors, including metabotropic glutamate receptors (mGluR1a
按照对映异构的合成方案,由相应的外消旋醛12-15制备了所有16个2-(2'-羧基-3'-苯基环丙基)甘氨酸(PCCG)立体异构体32-47。通过许多结合和功能实验,对化合物32-47作为几种兴奋性氨基酸受体(包括代谢型谷氨酸受体(mGluR1a,mGluR2,mGluR4)和离子型谷氨酸受体(NMDA,KA,AMPA))的潜在配体进行了评估。作为钠依赖性和钙/氯依赖性谷氨酸转运系统。化合物32-47的立体文库似乎具有独特的药理特性。PCCG-2(33)和PCCG-3(34)在低微摩尔浓度下取代了标记的海藻酸盐;PCCG-9(40)和PCCG-11(42)与NMDA位点的相互作用较弱;PCCG-5(36),PCCG-10(41),和PCCG-12(43)被证明是依赖Ca2 + / Cl(-)的谷氨酸转运系统的有效抑制剂。最有趣的是,已证明PCCG-4(35)能够拮抗(IC50 = 8 mi