Herein, we report a novel strategy for the activation of DMSO to act as a versatile alkylatingagent in heteroarene C−H functionalization. This direct, simple, and mild switch between methylation/trideuteromethylation and methylthiomethylation of heteroarenes was achieved under reagent‐controlled photoredox catalysis conditions. The proposed mechanism is supported by both experimental and computational
Provided are compounds of formula I that are useful in the treatment and/or prevention of diseases mediated by deficient levels of glucokinase activity, such as diabetes meilitus. Also provided are methods of treating or preventing diseases and disorders characterized by underactivity of glucokinase or which can be treated by activating glucokinase.