Novel and orally active 5-(1,3,4-oxadiazol-2-yl)pyrimidine derivatives as selective FLT3 inhibitors
作者:Hiroshi Ishida、Shoichi Isami、Tsutomu Matsumura、Hiroshi Umehara、Yoshinori Yamashita、Jiro Kajita、Eiichi Fuse、Hitoshi Kiyoi、Tomoki Naoe、Shiro Akinaga、Yukimasa Shiotsu、Hitoshi Arai
DOI:10.1016/j.bmcl.2008.09.031
日期:2008.10
4-Oxadiazol-2-yl)pyrimidine derivative 1 was identified as a new class of FLT3 inhibitor from our compound library. With the aim of enhancement of antitumor activity of 2 prepared by minor modification of 1, structure optimization of side chains at the 2-, 4-, and 5-positions of the pyrimidine ring of 2 was performed to improve the metabolic stability. Introduction of polar substituents on the 1,3,4-oxadiazolyl
5-(1,3,4-Oxadiazol-2-yl)嘧啶衍生物1从我们的化合物库中被鉴定为一类新的FLT3抑制剂。为了增强通过对1进行少量修饰而制备的2的抗肿瘤活性,进行了对嘧啶环2的2-,4-和5-位侧链的结构优化,以改善代谢稳定性。在1,3,4-恶二唑基上引入极性取代基有助于代谢稳定性的显着提高。结果,通过口服给药,一系列化合物在小鼠中显示出针对MOLM-13异种移植模型的增强的功效。