S1P1-selective agonist prodrug IMMH002 is phosphorylated in rats to form an S-configured enantiomer: Synthesis, verification, and biological activity of the in vivo active metabolite
作者:Qiong Xiao、Minwan Hu、Si Chen、Jing Jin、Li Li、Jinping Hu、Ping Xie、Dali Yin
DOI:10.1016/j.bmcl.2020.127141
日期:2020.6
IMMH002 (1), a prodrug for a sphingosine-1-phosphate receptor 1 (S1P1) agonist, is converted to the monophosphate ester, which has an immunomodulatory effect. Starting from prochiral amino alcohol 1, racemic and enantiomerically pure phosphates of 1 were synthesized. Pure enantiomers were obtained after the chiral resolution of the key intermediate by chiral high-performance liquid chromatography and
IMMH002(1)是一种鞘氨醇1-磷酸受体1(S1P1)激动剂的前药,被转化为具有免疫调节作用的单磷酸酯。从前手性氨基醇1开始,合成了外消旋和对映体纯的1的磷酸盐。通过手性高效液相色谱对关键中间体进行手性拆分后,可获得纯对映体,并通过圆二色性确定了绝对构型。在体外均相时间分辨荧光-IP1功能测定中,(S)-对映体比(R)-对映体显示出更高的S1P1活性和选择性。在药代动力学研究中,离体邻苯二甲醛衍生化方案表明,大鼠中1的磷酸盐是S-构型对映异构体,对映体过量> 99%。