Discovery and initial optimization of 5,5′-disubstituted aminohydantoins as potent β-secretase (BACE1) inhibitors
作者:Pawel Nowak、Derek C. Cole、Ann Aulabaugh、Jonathan Bard、Rajiv Chopra、Rebecca Cowling、Kristi Y. Fan、Baihua Hu、Steve Jacobsen、Minakshi Jani、Guixan Jin、Mei-Chu Lo、Michael S. Malamas、Eric S. Manas、Rani Narasimhan、Peter Reinhart、Albert J. Robichaud、Joseph R. Stock、Joan Subrath、Kristine Svenson、Jim Turner、Erik Wagner、Ping Zhou、John W. Ellingboe
DOI:10.1016/j.bmcl.2009.11.052
日期:2010.1
8,8-Diphenyl-2,3,4,8-tetrahydroimidazo[1,5-a]pyrimidin-6-amine (1) was identified through HTS, as a weak (micromolar) inhibitor of BACE1. X-Ray crystallographic studies indicate the 2-aminoimidazole ring forms key H-bonding interactions with Asp32 and Asp228 in the catalytic site of BACE1. Lead optimization using structure-based focused libraries led to the identification of low nanomolar BACE1 inhibitors
通过HTS将8,8-二苯基-2,3,4,8-四氢咪唑并[1,5- a ]嘧啶-6-胺(1)鉴定为BACE1的弱(微摩尔)抑制剂。X射线晶体学研究表明2-氨基咪唑环在BACE1的催化位点与Asp32和Asp228形成关键的H键相互作用。使用基于结构的聚焦库进行的前导优化导致鉴定出具有从S 1到S 3口袋的取代基的低纳摩尔BACE1抑制剂(例如20b)。