Overcoming Time-Dependent Inhibition (TDI) of Cytochrome P450 3A4 (CYP3A4) Resulting from Bioactivation of a Fluoropyrimidine Moiety
作者:Mihirbaran Mandal、Kaushik Mitra、Diane Grotz、Xinjie Lin、Jairam Palamanda、Pramila Kumari、Alexei Buevich、John P. Caldwell、Xia Chen、Kathleen Cox、Leonard Favreau、Lynn Hyde、Matthew E. Kennedy、Reshma Kuvelkar、Xiaoxiang Liu、Robert D. Mazzola、Eric Parker、Diane Rindgen、Edward Sherer、Hongwu Wang、Zhaoning Zhu、Andrew W. Stamford、Jared N. Cumming
DOI:10.1021/acs.jmedchem.8b01326
日期:2018.12.13
Herein we describe structure–activity relationship (SAR) and metabolite identification (Met-ID) studies that provided insight into the origin of time-dependent inhibition (TDI) of cytochrome P450 3A4 (CYP3A4) by compound 1. Collectively, these efforts revealed that bioactivation of the fluoropyrimidine moiety of 1 led to reactive metabolite formation via oxidative defluorination and was responsible
本文中,我们描述了结构-活性关系(SAR)和代谢物鉴定(Met-ID)研究,这些研究为化合物1对细胞色素P450 3A4(CYP3A4)的时间依赖性抑制(TDI)的起源提供了见识。总的来说,这些努力揭示了1的氟嘧啶部分的生物活化导致经由氧化脱氟的反应性代谢产物形成,并且是观察到的TDI的原因。我们发现,在1的5-氟嘧啶的4和6位上进行取代对于改善该TDI是必要的,如化合物19所示。