Iterative Approach to the Discovery of Novel Degarelix Analogues: Substitutions at Positions 3, 7, and 8. Part II
作者:Manoj P. Samant、Jozsef Gulyas、Doley J. Hong、Glenn Croston、Catherine Rivier、Jean Rivier
DOI:10.1021/jm050134t
日期:2005.7.1
extent (efficacy and duration of action) of inhibition of luteinizing hormone (LH) release. Structurally, this series of analogues has novel substitutions at positions 3, 7, and 8 and N(alpha)-methylation at positions 6, 7, and 8 in the structure of degarelix. These substitutions were designed to probe the spatial limitations of the receptor's cavity and to map the steric and ionic boundaries. Some
Degarelix(FE200486,Ac-d-2Nal(1)-d-4Cpa(2)-d-3Pal(3)-Ser(4)-4Aph(1-Hor)(5)-d-4Aph(Cbm)(6 )-Leu(7)-ILys(8)-Pro(9)-d-Ala(10)-NH(2))是哺乳动物皮下给药后促性腺激素释放激素(GnRH)的强效且长效拮抗剂包括人类。在表达人GnRH受体的HEK-293细胞中,通过报告基因分析法合成,表征并表征了地加瑞克的类似物,并筛选了GnRH诱导的应答的拮抗作用。在去势雄性大鼠试验中还测定了作用的持续时间,以测量抑制黄体生成素(LH)释放的程度(作用和作用的持续时间)。从结构上讲,这一系列类似物在地加瑞克的结构中的3、7和8位具有新的取代基,并在6、7和8位具有Nα-甲基化。设计这些替代物以探测受体腔的空间限制并绘制空间和离子边界。引入了一些官能团,这些官能团被认为会影响类似物的药动学性