Discovery of a potent dual inhibitor of wild-type and mutant respiratory syncytial virus fusion proteins through the modulation of atropisomer interconversion properties
作者:Toru Yamaguchi-Sasaki、Takanori Kawaguchi、Atsushi Okada、Seiken Tokura、Nozomi Tanaka-Yamamoto、Tomoki Takeuchi、Yuya Ogata、Ryo Takahashi、Risa Kurimoto-Tsuruta、Tomokazu Tamaoki、Yutaka Sugaya、Tomoko Abe-Kumasaka、Kaho Arikawa、Ippei Yoshida、Hiroyuki Sugiyama、Kosuke Kanuma、Mitsukane Yoshinaga
DOI:10.1016/j.bmc.2020.115818
日期:2020.12
macrocyclic pyrazolo[1,5-a]pyrimidine derivative 4 that exhibited potent anti-RSV activities against not only wild-type, but also D486N-mutant F protein. However, NMR studies revealed that the 15-membered derivative 4 existed as a mixture of atropisomers. An optimization study of the linker moiety between the 2-position of the benzoyl moiety and the 7-position of the pyrazolo[1,5-a]pyrimidine scaffold
迫切需要开发针对野生型和D486N突变型F蛋白的有效呼吸道合胞病毒(RSV)融合糖蛋白(F蛋白)抑制剂。我们最近报道了一个15元的大环吡唑并[1,5- a ]嘧啶衍生物4,它不仅针对野生型,而且针对D486N突变F蛋白均表现出强大的抗RSV活性。但是,NMR研究表明15元衍生物4以阻转异构体的混合物形式存在。对苯甲酰基部分的2-位和吡唑并[1,5- a ]嘧啶支架的7位之间的连接子部分的优化研究确定了16元衍生物42c酰胺接头显示出快速阻转异构体。吡唑并[1,5- a ]嘧啶支架的5-位和苯甲酰基部分的5-位的随后优化导致发现了用于治疗RSV感染的有效临床候选物60b。