Design and Synthesis of Selective Phosphodiesterase 4D (PDE4D) Allosteric Inhibitors for the Treatment of Fragile X Syndrome and Other Brain Disorders
作者:Mark E. Gurney、Richard A. Nugent、Xuesheng Mo、Janice A. Sindac、Timothy J. Hagen、David Fox、James M. O’Donnell、Chong Zhang、Ying Xu、Han-Ting Zhang、Vincent E. Groppi、Marc Bailie、Ronald E. White、Donna L. Romero、A. Samuel Vellekoop、Joel R. Walker、Matthew D. Surman、Lei Zhu、Robert F. Campbell
DOI:10.1021/acs.jmedchem.9b00193
日期:2019.5.23
pyridine- and pyrimidine-based allosteric inhibitors are reported that achieve PDE4D subtype selectivity through recognition of a single amino acid difference on a key regulatory domain, known as UCR2, that opens and closes over the catalytic site for cAMP hydrolysis. The design and optimization of lead compounds was based on iterative analysis of X-ray crystal structures combined with metabolite identification
据报道,新的基于吡啶和嘧啶的变构抑制剂通过识别关键调控域(称为 UCR2)上的单个氨基酸差异来实现 PDE4D 亚型选择性,该域在 cAMP 水解的催化位点上打开和关闭。先导化合物的设计和优化基于 X 射线晶体结构的迭代分析和代谢物鉴定。对 PDE4D 的活化二聚体形式的选择性在新物体识别的小鼠模型中提供了有效的记忆增强效果,与缺乏亚型选择性的早期 PDE4 抑制剂相比,具有更高的耐受性和更低的血管毒性。先导化合物 28 (BPN14770) 已进入治疗脆性 X 综合征的中期人类 2 期临床试验。