new protocol for the direct two-electron oxidative Umpolung of alkali halidesalts is reported. This procedure, relying on the use of a commercially available sulfoxide as the oxidant, allows the electrophilichalogenation of carbonyl compounds as well as halolactonisation reactions to proceed from the corresponding sodium salts, at room temperature and under mild conditions.
The present disclosure relates to heterocyclic compounds, pharmaceutically acceptable salts thereof, and pharmaceutical preparations thereof. Also described herein are compositions and the use of such compounds in methods of treating diseases and conditions mediated by deficient CFTR activity, in particular cystic fibrosis.