Merging gold catalysis, organocatalytic oxidation, and Lewis acid catalysis for chemodivergent synthesis of functionalized oxazoles from N-propargylamides
作者:Shaoyu Mai、Changqing Rao、Ming Chen、Jihu Su、Jiangfeng Du、Qiuling Song
DOI:10.1039/c7cc05746f
日期:——
Novel catalytic systems consisting of cationicgold complexes, N-hydroxyphthalimide (NHPI), and transition-metal-based Lewis acids have been developed for the one-pot synthesis of functionalized oxazoles from N-propargylamides with excellent functional group tolerance. These transformations demonstrated the excellent compatibility of homogeneous goldcatalysis with organocatalytic oxidative carbon–nitrogen
Iron-catalyzed C–H/N–H activation by triazole guidance: versatile alkyne annulation
作者:G. Cera、T. Haven、L. Ackermann
DOI:10.1039/c7cc03376a
日期:——
Iron-catalyzedC–H/N–Hfunctionalizations were achieved by the aid of modular triazole amides. The alkyne annulation allowed for the expedient synthesis of valuable isoquinolone scaffolds with high levels of chemo-, site- and regio-selectivities.
Multifunctional multivalency: a focused library of polymeric cholera toxin antagonists
作者:Huu-Anh Tran、Pavel I. Kitov、Eugenia Paszkiewicz、Joanna M. Sadowska、David R. Bundle
DOI:10.1039/c0ob01089h
日期:——
the multivalent ligands is important for successful interaction with multimeric proteins. Polymer-based heterobifunctionalligands that contain pendant groups prearranged into heterodimers can be used to probe the active site and surrounding area of the receptor. Here we describe the synthesis and activities of a series of galactose conjugates on polyacrylamide and dextran. Conjugation of a second fragment
METHODS AND COMPOUNDS FOR RESTORING MUTANT p53 FUNCTION
申请人:PMV Pharmaceuticals, Inc.
公开号:US20170240525A1
公开(公告)日:2017-08-24
Mutations in oncogenes and tumor suppressors contribute to the development and progression of cancer. The present disclosure describes compounds and methods to recover wild-type function to p53 mutants. The compounds of the present invention can bind to mutant p53 and restore the ability of the p53 mutant to bind DNA and activate downstream effectors involved in tumor suppression. The disclosed compounds can be used to reduce the progression of cancers that contain a p53 mutation.
Rh(<scp>iii</scp>)-Catalyzed three-component cascade annulation to produce the <i>N</i>-oxopropyl chain of isoquinolone derivatives
作者:Yuan He、Xian-Zhang Liao、Lin Dong、Fen-Er Chen
DOI:10.1039/d0ob02389b
日期:——
versatile functional groups at the N-substituents of isoquinolone scaffolds is still a great challenge. Herein, we report a novel three-component cascade annulation reaction to efficiently construct the N-oxopropyl chain of isoquinolone derivatives via rhodium(III)-catalyzed C–H activation/cyclization/nucleophilic attack, with oxazoles used both as the directing group and potential functionalized reagents