<i>Para</i>-Selective C–H Borylation of Common Arene Building Blocks Enabled by Ion-Pairing with a Bulky Countercation
作者:Madalina T. Mihai、Benjamin D. Williams、Robert J. Phipps
DOI:10.1021/jacs.9b07267
日期:2019.10.2
The selective functionalization of C–H bonds at the arene para position is highly challenging using transition metal catalysis. Iridium-catalyzed borylation has emerged as a leading technique for arene functionalization, but there are only a handful of strategies for para-selective borylation, which operate on specific substrate classes and use bespoke ligands or catalysts. We describe a remarkably
Discovery of Pyrazolopyrimidine Derivatives as Novel Dual Inhibitors of BTK and PI3Kδ
作者:Brahmam Pujala、Anil K. Agarwal、Sandip Middya、Monali Banerjee、Arjun Surya、Anjan K. Nayak、Ashu Gupta、Sweta Khare、Rambabu Guguloth、Nitin A. Randive、Bharat U. Shinde、Anamika Thakur、Dhananjay I. Patel、Mohd. Raja、Michael J. Green、Jennifer Alfaro、Patricio Avila、Felipe Pérez de Arce、Ramona G. Almirez、Stacy Kanno、Sebastián Bernales、David T. Hung、Sarvajit Chakravarty、Emma McCullagh、Kevin P. Quinn、Roopa Rai、Son M. Pham
DOI:10.1021/acsmedchemlett.6b00356
日期:2016.12.8
BTK and PI3Kδ are kinases responsible for B-cell signal transduction, and inhibitors of these enzymes have demonstrated clinical benefit in certain types of lymphoma. Simultaneous inhibition of these pathways could result in more robust responses or overcome resistance as observed in single agent use. We report a series of novel compounds that have low nanomolar potency against both BTK and PI3Kδ as