Metabolic Instability of Cyanothiazolidine-Based Prolyl Oligopeptidase Inhibitors: a Structural Assignment Challenge and Potential Medicinal Chemistry Implications
作者:Paolo Schiavini、Joshua Pottel、Nicolas Moitessier、Karine Auclair
DOI:10.1002/cmdc.201500114
日期:2015.7
single primary metabolite into a panel of secondary metabolites. The rapid isomerization of all seven detected molecules precluded the use of NMR spectroscopy or X‐ray crystallography for complete structural determination, presenting an interesting structure elucidation challenge. Through a combination of LC–MS analysis, synthetic work, deuterium exchange studies, and computational predictions, we were
作为基于氰基噻唑烷的脯氨酰寡肽酶抑制剂开发的一部分,初步代谢研究表明P450酶可氧化多个位点。令人惊讶的是,深入的研究表明,在多个立体遗传学中心的差向异构是将单一主要代谢物转化为一系列次要代谢物的原因。所有七个检测到的分子的快速异构化都无法使用NMR光谱法或X射线晶体学进行完整的结构测定,从而提出了有趣的结构阐明挑战。通过结合LC-MS分析,合成工作,氘交换研究和计算预测,我们能够表征所有代谢物并阐明其在溶液中的动态行为。在药物开发的背景下,