Copper-Catalyzed Synthesis of Activated Sulfonate Esters from Boronic Acids, DABSO, and Pentafluorophenol
作者:Vincent Vedovato、Eric P. A. Talbot、Michael C. Willis
DOI:10.1021/acs.orglett.8b02445
日期:2018.9.7
The synthesis of pentafluorophenyl (PFP) sulfonate esters based on the Pd-catalyzed sulfination of aryl and heteroaryl boronic acids is reported. The sulfinate intermediates are converted in situ to the corresponding sulfonate estersusing a copper-catalyzed oxidative process, providing a broad range of PFP esters in good yields.
Biaryl substituted hydantoin compounds as TACE inhibitors
作者:Wensheng Yu、Ling Tong、Seong Heon Kim、Michael K.C. Wong、Lei Chen、De-Yi Yang、Bandarpalle B. Shankar、Brian J. Lavey、Guowei Zhou、Aneta Kosinski、Razia Rizvi、Dansu Li、Robert J. Feltz、John J. Piwinski、Kristin E. Rosner、Neng-Yang Shih、M. Arshad Siddiqui、Zhuyan Guo、Peter Orth、Himanshu Shah、Jing Sun、Shelby Umland、Daniel J. Lundell、Xiaoda Niu、Joseph A. Kozlowski
DOI:10.1016/j.bmcl.2010.06.134
日期:2010.9
We disclose further optimization of hydantoin TNF-α convertase enzyme (TACE) inhibitors. SAR with respect to the non-prime region of TACE active site was explored. A series of biaryl substitutedhydantoincompounds was shown to have sub-nanomolar Ki, good rat PK, and good selectivity versus MMP-1, -2, -3, -7, -9, and -13.