Synthesis, SARs, and Pharmacological Characterization of 2-Amino-3 or 6-fluorobicyclo[3.1.0]hexane-2,6-dicarboxylic Acid Derivatives as Potent, Selective, and Orally Active Group II Metabotropic Glutamate Receptor Agonists
作者:Atsuro Nakazato、Toshihito Kumagai、Kazunari Sakagami、Ryoko Yoshikawa、Yoshiko Suzuki、Shigeyuki Chaki、Hisanaka Ito、Takeo Taguchi、Shigetada Nakanishi、Shigeru Okuyama
DOI:10.1021/jm000346k
日期:2000.12.1
might slightly change the relative conformation of three functional groups, the amino group and two carboxylic acids, which have important roles in mediating the interaction between group II mGluRs and their ligand, compared with the CH(2) group of 4, oxygen atom of 5, and sulfur atom of 6. (1R,2S,5S,6S)-2-Amino-6-fluoro-4-oxobicyclo[3.1. 0]hexane-2,6-dicarboxylic acid monohydrate ((+)-14, MGS0028) exhibited
高选择性和口服活性的II族代谢型谷氨酸受体激动剂(+)-2-氨基双环[3.1.0]己烷-2,6-二羧酸(4,LY354740),对该组的研究越来越感兴趣II mGluR。我们的兴趣集中在化合物4的构象约束形式上,因为似乎刚性形式不仅导致对II组mGluR的选择性而且具有口服活性。因此,我们基于分子的大小(与氢原子非常相似)和该原子的电负性(对分子中电子分布的影响)和碳-氟键能,将氟原子引入化合物4中。化合物(+)-7(MGS0008)是3-氟衍生物7-10中最好的化合物,保留了化合物4对mGluR2和mGluR3的激动活性((+)-7:EC(50)= 29.4 +/- 3.3 nM和45.4 +/- 8。mGluR2和mGluR3分别为4 nM;4:mGluR2和mGluR3的EC(50)= 18.3 +/- 1.6 nM和62.8 +/- 12 nM),并提高了化合物4的口服活性((+)-7:ED(50)=