Synthesis and Discovery of <i>N</i>-Carbonylpyrrolidine- or <i>N</i>-Sulfonylpyrrolidine-Containing Uracil Derivatives as Potent Human Deoxyuridine Triphosphatase Inhibitors
作者:Hitoshi Miyakoshi、Seiji Miyahara、Tatsushi Yokogawa、Khoon Tee Chong、Junko Taguchi、Kanji Endoh、Wakako Yano、Takeshi Wakasa、Hiroyuki Ueno、Yayoi Takao、Makoto Nomura、Satoshi Shuto、Hideko Nagasawa、Masayoshi Fukuoka
DOI:10.1021/jm201627n
日期:2012.4.12
development as part of a new strategy of 5-fluorouracil-based combination chemotherapy. We have initiated a program to develop potent drug-like dUTPase inhibitors based on structure–activity relationship (SAR) studies of uracil derivatives. N-Carbonylpyrrolidine- and N-sulfonylpyrrolidine-containing uracils were found to be promising scaffolds that led us to human dUTPase inhibitors (12k) having excellent
最近,脱氧尿苷三磷酸酶(dUTPase)已成为药物开发的潜在目标,是基于5氟尿嘧啶的联合化疗新策略的一部分。我们已经启动了一个程序,以尿嘧啶衍生物的结构-活性关系(SAR)研究为基础,开发有效的药物样dUTPase抑制剂。发现含有N-羰基吡咯烷和N-磺酰吡咯烷的尿嘧啶是有前途的支架,使我们获得了具有出色效价(IC 50 = 0.15μM)的人dUTPase抑制剂(12k)。16a配合物的X射线结构dUTPase和人dUTPase显示出独特的结合方式,其中其尿嘧啶环和苯环分别占据尿嘧啶识别区和疏水区,并且彼此堆叠。化合物12a和16a显着增强了5-氟-2'-脱氧尿苷在体外对HeLa S3细胞的生长抑制活性(EC 50 = 0.27–0.30μM),这表明我们的新型dUTPase抑制剂可在以下情况下促进化学疗法的发展:与TS抑制剂联合使用。