结核病仍然是严重的公共卫生挑战,抗结核病新药的研发是全球根除结核病战略的重要组成部分。在这项工作中,我们通过重点研究铅的优化发现了一种构象受限的恶唑烷酮19c,具有改进的抗结核病活性和安全性。与利奈唑胺和舒替利特相比,化合物19c在小鼠TB感染模型中显示出优异的体内功效。在包括动物的微粒体稳定性,细胞毒性,细胞色素P450酶抑制作用和药代动力学在内的一系列测定中证明了化合物19c的可药用性。化合物19c在一系列安全性测定中证明了出色的安全性,包括线粒体蛋白合成,hERG K +,hCav1.2和Nav1.5通道,单胺氧化酶和遗传毒性。在对大鼠进行的为期4周的重复剂量毒理学研究中,19c似乎比利奈唑胺具有更少的骨髓抑制作用,这一直是恶唑烷酮类的主要特征。
NITROGEN CONTAINING HETEROCYCLE SUBSTITUTED BENZOXAZINE OXAZOLIDINONE COMPOUND AND PREPARATION METHOD AND USE THEREOF
申请人:INSTITUTE OF MATERIA MEDICA .CHINESE ACADEMY OF MEDICAL SCIENCES
公开号:US20210188871A1
公开(公告)日:2021-06-24
The present invention discloses a nitrogen-containing heterocyclic substituted benzoxazine oxazolidinone compound, a preparation method and use thereof in the manufacture of a medicament for treating and/or preventing infectious diseases caused by
Mycobacterium tuberculosis
. Specifically, the present invention relates to a compound represented by formula (I) and stereoisomer thereof, pharmaceutically acceptable salt thereof, and a pharmaceutical composition comprising the compounds of the present invention, use thereof, a method for preparing the compound, in which X
1
, X
2
, R
1
and R
2
are described in the specification.
Design, Synthesis, and Structure–Activity and Structure–Pharmacokinetic Relationship Studies of Novel [6,6,5] Tricyclic Fused Oxazolidinones Leading to the Discovery of a Potent, Selective, and Orally Bioavailable FXa Inhibitor
identification of oral small-molecule inhibitors of FXa remains a research focus. On the basis of the X-ray crystal structure of FXa and its inhibitor rivaroxaban, we designed and synthesized a series of conformationally restricted mimics containing a novel [6,6,5] tricyclic fused oxazolidinone scaffold. Intensive structure–activityrelationship (SAR) and structure–pharmacokinetic relationship (SPR) studies
An efficient and mild one-pot convergent synthesis protocol has been developed for benzo[b]oxazolo[3,4-d][1,4]oxazin-1-one derivatives through the Mitsunobu reaction and sequential cyclization. Various tricyclic fused benzoxazinyl-oxazolidinones (20 examples) were obtained in good to excellent yields and high enantioselectivities with facile operation. Furthermore, four stereoisomers were afforded
通过 Mitsunobu 反应和顺序环化,为苯并[ b ]恶唑并[3,4- d ][1,4]oxazin-1-one 衍生物开发了一种高效温和的一锅聚合合成方案。各种三环稠合苯并恶嗪基-恶唑烷酮(20 个实例)以良好至优异的收率和高对映选择性且操作简便获得。此外,通过使用不同的手性 2,3-epoxy-4-trityloxybutanol ,四种立体异构体分别具有高 ee 值(>97.8%) 。该方法已应用于候选药物关键中间体的合成。
Nitrogen containing heterocycle substituted benzoxazine oxazolidinone compound and preparation method and use thereof
申请人:INSTITUTE OF MATERIA MEDICA, CHINESE ACADEMY OF MEDICAL SCIENCES
公开号:US11332477B2
公开(公告)日:2022-05-17
The present invention discloses a nitrogen-containing heterocyclic substituted benzoxazine oxazolidinone compound, a preparation method and use thereof in the manufacture of a medicament for treating and/or preventing infectious diseases caused by Mycobacterium tuberculosis. Specifically, the present invention relates to a compound represented by formula (I) and stereoisomer thereof, pharmaceutically acceptable salt thereof, and a pharmaceutical composition comprising the compounds of the present invention, use thereof, a method for preparing the compound, in which X1, X2, R1 and R2 are described in the specification.