融合的嘧啶核心是特殊的激酶支架,但在激酶抑制剂计划的背景下,很少有 2-氨基-吡啶并[3,4- d ]嘧啶化学型的例子被披露。此外,尚未报道获得 2-氨基-吡啶并[3,4- d ]嘧啶衍生物的通用合成路线。在这里,我们报告了一种针对此类分子的通用且有效的化学方法。我们的策略涉及8-氯-2-(甲硫基)吡啶并[3,4- d ]嘧啶中间体的简明制备及其有效衍生化,以得到具有激酶抑制剂潜力的新型化合物。
Rapid Discovery of Pyrido[3,4-<i>d</i>]pyrimidine Inhibitors of Monopolar Spindle Kinase 1 (MPS1) Using a Structure-Based Hybridization Approach
作者:Paolo Innocenti、Hannah L. Woodward、Savade Solanki、Sébastien Naud、Isaac M. Westwood、Nora Cronin、Angela Hayes、Jennie Roberts、Alan T. Henley、Ross Baker、Amir Faisal、Grace Wing-Yan Mak、Gary Box、Melanie Valenti、Alexis De Haven Brandon、Lisa O’Fee、Harry Saville、Jessica Schmitt、Berry Matijssen、Rosemary Burke、Rob L. M. van Montfort、Florence I. Raynaud、Suzanne A. Eccles、Spiros Linardopoulos、Julian Blagg、Swen Hoelder
DOI:10.1021/acs.jmedchem.5b01811
日期:2016.4.28
chromosomes and centrosomes and are thus more sensitive to MPS1 inhibition than normal cells. We report the discovery and optimization of a series of new pyrido[3,4-d]pyrimidine based inhibitorsvia a structure-based hybridization approach from our previously reported inhibitor CCT251455 and a modestly potent screening hit. Compounds in this novel series display excellent potency and selectivity for MPS1, which
The present invention relates to compounds of formula I
wherein R
1
, R
4
, Ar, W, X and Z are all as defined herein. The compounds of the present invention are known to inhibit the spindle checkpoint function of Monospindle 1 (Mps1—also known as TTK) kinases either directly or indirectly via interaction with the Mps1 kinase itself. In particular, the present invention relates to the use of these compounds as therapeutic agents for the treatment and/or prevention of proliferative diseases, such as cancer. The present invention also relates to processes for the preparation of these compounds, and to pharmaceutical compositions comprising them.
The present invention relates to compounds of formula I
wherein R1, R4, Ar, W, X and Z are all as defined herein. The compounds of the present invention are known to inhibit the spindle checkpoint function of Monospindle 1 (Mps1—also known as TTK) kinases either directly or indirectly via interaction with the Mps1 kinase itself. In particular, the present invention relates to the use of these compounds as therapeutic agents for the treatment and/or prevention of proliferative diseases, such as cancer. The present invention also relates to processes for the preparation of these compounds, and to pharmaceutical compositions comprising them.
The present invention relates to compounds of formula I
wherein R1, R4, Ar, W, X and Z are all as defined herein. The compounds of the present invention are known to inhibit the spindle checkpoint function of Monospindle 1 (Mps1—also known as TTK) kinases either directly or indirectly via interaction with the Mps1 kinase itself. In particular, the present invention relates to the use of these compounds as therapeutic agents for the treatment and/or prevention of proliferative diseases, such as cancer. The present invention also relates to processes for the preparation of these compounds, and to pharmaceutical compositions comprising them.
本发明涉及式 I 的化合物
其中 R1、R4、Ar、W、X 和 Z 均如本文所定义。已知本发明的化合物可直接或间接通过与 Mps1 激酶本身的相互作用抑制 Monospindle 1(Mps1--又称 TTK)激酶的纺锤体检查点功能。特别是,本发明涉及将这些化合物用作治疗和/或预防癌症等增殖性疾病的治疗剂。本发明还涉及这些化合物的制备工艺以及包含这些化合物的药物组合物。
Introduction of a Methyl Group Curbs Metabolism of Pyrido[3,4-<i>d</i>]pyrimidine Monopolar Spindle 1 (MPS1) Inhibitors and Enables the Discovery of the Phase 1 Clinical Candidate <i>N</i><sup>2</sup>-(2-Ethoxy-4-(4-methyl-4<i>H</i>-1,2,4-triazol-3-yl)phenyl)-6-methyl-<i>N</i><sup>8</sup>-neopentylpyrido[3,4-<i>d</i>]pyrimidine-2,8-diamine (BOS172722)
作者:Hannah L. Woodward、Paolo Innocenti、Kwai-Ming J. Cheung、Angela Hayes、Jennie Roberts、Alan T. Henley、Amir Faisal、Grace Wing-Yan Mak、Gary Box、Isaac M. Westwood、Nora Cronin、Michael Carter、Melanie Valenti、Alexis De Haven Brandon、Lisa O’Fee、Harry Saville、Jessica Schmitt、Rosemary Burke、Fabio Broccatelli、Rob L. M. van Montfort、Florence I. Raynaud、Suzanne A. Eccles、Spiros Linardopoulos、Julian Blagg、Swen Hoelder
DOI:10.1021/acs.jmedchem.8b00690
日期:2018.9.27
Monopolar spindle 1 (MPS1) occupies a central role in mitosis and is one of the main components of the spindle assembly checkpoint. The MPS1 kinase is an attractive cancer target, and herein, we report the discovery of the clinical candidate BOS172722. The starting point for our work was a series of pyrido[3,4-d]pyrimidine inhibitors that demonstrated excellent potency and kinase selectivity but suffered from rapid turnover in human liver microsomes (HLM). Optimizing HLM stability proved challenging since it was not possible to identify a consistent site of metabolism and lowering lipophilicity proved unsuccessful. Key to overcoming this problem was the finding that introduction of a methyl group at the 6-position of the pyrido[3,4-d]pyrimidine core significantly improved HLM stability. Met ID studies suggested that the methyl group suppressed metabolism at the distant aniline portion of the molecule, likely by blocking the preferred pharmacophore through which P450 recognized the compound. This work ultimately led to the discovery of BOS172722 as a Phase 1 clinical candidate.