Discovery of Clinical Candidate 2-(4-(2-((1<i>H</i>-Benzo[<i>d</i>]imidazol-2-yl)thio)ethyl)piperazin-1-yl)-<i>N</i>-(6-methyl-2,4-bis(methylthio)pyridin-3-yl)acetamide Hydrochloride [K-604], an Aqueous-Soluble Acyl-CoA:Cholesterol <i>O</i>-Acyltransferase-1 Inhibitor
作者:Kimiyuki Shibuya、Katsumi Kawamine、Chiyoka Ozaki、Tadaaki Ohgiya、Toshiyuki Edano、Yasunobu Yoshinaka、Yoshihiko Tsunenari
DOI:10.1021/acs.jmedchem.8b01256
日期:2018.12.13
azin-1-yl)-N-(6-methyl-2,4-bis(methylthio)pyridin-3-yl)acetamide hydrochloride (K-604, 2) has been identified as an aqueous-soluble potent inhibitor of human acyl-coenzyme A:cholesterol O-acyltransferase (ACAT, also known as SOAT)-1 that exhibits 229-fold selectivity for human ACAT-1 over human ACAT-2. In our molecular design, the insertion of a piperazine unit in place of a 6-methylene chain in the
2-(4-(2-(((1 H-苯并[ d ]咪唑-2-基]硫代]乙基]哌嗪-1-基] -N-(6-甲基-2,4-双(甲硫基)]吡啶-3-基)乙酰胺盐酸盐(K-604,2)已被确定为人类酰基辅酶A的水性可溶强效抑制剂:胆固醇ö -acyltransferase(ACAT,也称为这项方案)-1表现出229倍对人ACAT-1的选择性高于对人ACAT-2的选择性。在我们的分子设计中,在头部(吡啶基乙酰胺)和尾部(苯并咪唑)之间的连接基中插入哌嗪单元代替6-亚甲基链导致水溶解度显着提高(最高19 mg / mL) pH 1.2时)和口服吸收的显着改善(C max为2为1100倍比的更高1与先前选择的化合物,相比于禁食的狗)1。在确保药理作用和安全性之后,我们指定2个临床候选药物,命名为K-604。考虑到ACAT抑制剂在过去的临床试验中的治疗结果,我们认为K-604将可用于治疗涉及ACAT-1过表达的不治之症。