Structure−Activity Relationships of Substituted 1-Pyridyl-2-phenyl-1,2-ethanediones: Potent, Selective Carboxylesterase Inhibitors
作者:Brandon M. Young、Janice L. Hyatt、David C. Bouck、Taosheng Chen、Parimala Hanumesh、Jeanine Price、Vincent A. Boyd、Philip M. Potter、Thomas R. Webb
DOI:10.1021/jm101101q
日期:2010.12.23
Inhibition of intestinal carboxylesterases may allow modification of the pharmacokinetics/pharmacodynamic profile of existing drugs by altering half-life or toxicity. Since previously identified diarylethane-1,2-dione inhibitors are decidedly hydrophobic, a modified dione scaffold was designed and elaborated into a > 300 member library, which was subsequently screened to establish the SAR for esterase inhibition. This allowed the identification of single digit nanomolar hiCE inhibitors that showed improvement in selectivity and measured solubility.
Demethylenative cyclization of 1,7-enynes using α-amino radicals as a traceless initiator enabled by Cu(i)-photosensitizers
作者:Qinfang Jiang、Hanyang Bao、Yun Peng、Yan Zhou、Lang Chen、Yunkui Liu
DOI:10.1039/d4cc01592d
日期:——
A Cu(i)-photosensitizer-enabled demethylenative radical cyclization of 1,7-enynes to access quinoline-2-(1H)-ones was successfully achieved using α-amino radicals as a traceless radical initiator.