Discovery of 3-Oxabicyclo[4.1.0]heptane, a Non-nitrogen Containing Morpholine Isostere, and Its Application in Novel Inhibitors of the PI3K-AKT-mTOR Pathway
作者:Heather Hobbs、Gianpaolo Bravi、Ian Campbell、Maire Convery、Hannah Davies、Graham Inglis、Sandeep Pal、Simon Peace、Joanna Redmond、Declan Summers
DOI:10.1021/acs.jmedchem.9b00348
日期:2019.8.8
4-(Pyrimidin-4-yl)morpholines are privileged pharmacophores for PI3K and PIKKs inhibition by virtue of the morpholine oxygen, both forming the key hydrogen bonding interaction and conveying selectivity over the broader kinome. Key to the morpholine utility as a kinase hinge binder is its ability to adopt a coplanar conformation with an adjacent aromatic core favored by the morpholine nitrogen nonbonding
4-(嘧啶-4-基)吗啉由于吗啉氧而成为抑制PI3K和PIKKs的特权药效基团,既形成了关键的氢键相互作用,又在更广泛的kinome上传递了选择性。吗啉作为激酶铰链结合剂的关键在于它能够与相邻的芳香核形成共面构象,而该芳香核受吗啉氮非键电子与缺电子的嘧啶π系统相互作用而受到促进。迄今为止,几乎没有发现选择性吗啉替代品。本文中,我们描述了一种具有强大的非氮的吗啉类异构体的能力,该异构体具有模仿这种构象的能力,并将其应用在mTORC1和mTORC2的有效选择性双重抑制剂中(29b)。