Structure−Activity Relationships of Bisphosphate Nucleotide Derivatives as P2Y<sub>1</sub> Receptor Antagonists and Partial Agonists
作者:Erathodiyil Nandanan、Emidio Camaioni、Soo-Yeon Jang、Yong-Chul Kim、Gloria Cristalli、Piet Herdewijn、John A. Secrist、Kamal N. Tiwari、Arvind Mohanram、T. Kendall Harden、José L. Boyer、Kenneth A. Jacobson
DOI:10.1021/jm980657j
日期:1999.5.1
anhydrohexitol ring modifications have been prepared and resulted in enhanced agonist properties. The 1,5-anhydrohexitol analogue 36 was a pure agonist with an EC50 of 3 microM, i.e., similar in potency to ATP. 5'-Phosphate groups have been modified in the form of triphosphate, methyl phosphate, and cyclic 3',5'-diphosphate derivatives. The carbocyclic analogue had enhanced agonist efficacy, and the 5'-O-phosphonylmethyl
P2Y1 受体存在于心脏、骨骼和各种平滑肌以及血小板中,其激活与聚集有关。腺苷 3',5'- 和 2',5'-二磷酸已被鉴定为 P2Y1 受体的选择性拮抗剂 (Boyer et al. Mol. Pharmacol. 1996, 50, 1323-1329),并已进行结构修饰以增加受体亲和力(Camaioni 等 J. Med. Chem. 1998, 41, 183-190)。我们将结构-活性关系扩展到一系列新的脱氧腺苷二磷酸,并在腺嘌呤碱基、核糖部分和磷酸基团中进行了取代。通过测量其刺激火鸡红细胞膜中磷脂酶 C(激动剂作用)和抑制 10 nM 2-(甲硫基)腺苷 5'-二磷酸引起的磷脂酶 C 刺激(拮抗剂作用)的能力,确定每种类似物对 P2Y1 受体的活性。 。在腺嘌呤环的 2 位上含有卤素、氨基和硫醚基团的 2'-脱氧腺苷二磷酸类似物是比在 8 位上含有各种杂原子取代的类似物更有效的