free radical C – H tri fl uoromethylation of peptides †

Chemistry Capabilities and Screening, Merc Jersey 07033, USA. E-mail: shane_krska@m Kenilworth Discovery Chemistry, Merck Sha 07033, USA Analytical Research & Development, Merck West Point Discovery Chemistry, Merck Pennsylvania 19486, USA Discovery Chemistry Modalities, Merck Shar 07033, USA. E-mail: craig_parish@merck.co † Electronic supplementary informa 10.1039/c8sc00368h Cite this: Chem. Sci., 2018, 9, 4168