The present invention provides compounds and compositions thereof which are useful as inhibitors of plasma kallikrein and which exhibit desirable characteristics for the same.
Electrophilic trifluoromethylation of arenes and N-heteroarenes using hypervalent iodine reagents
作者:Matthias S. Wiehn、Ekaterina V. Vinogradova、Antonio Togni
DOI:10.1016/j.jfluchem.2010.06.020
日期:2010.9
The reaction of hypervalentiodine trifluoromethylating reagents with a variety of arenes and N-heteroarenes gives access to the corresponding trifluoromethylated compounds. In comparative studies, 1-trifluoromethyl-1,3-dihydro-3,3-dimethyl-1,2-benziodoxole (2) proved to be the superior to 1-trifluoromethyl-1,2-benziodoxol-3-(1H)-one (1) for the direct aromatic trifluoromethylation. Depending on the
Radical-Based Regioselective C–H Functionalization of Electron-Deficient Heteroarenes: Scope, Tunability, and Predictability
作者:Fionn O’Hara、Donna G. Blackmond、Phil S. Baran
DOI:10.1021/ja406223k
日期:2013.8.14
of substituents exert consistent and additive effects on the regioselectivity of substitution. This allowed us to establish guidelines for predicting regioselectivity on complex π-deficient heteroarenes, including pyridines, pyrimidines, pyridazines, and pyrazines. Since the relative contribution from opposing directing factors was dependent on solvent and pH, it was sometimes possible to tune the regiochemistry