O-Demethylation of Opioid Derivatives with Methane Sulfonic Acid/ Methionine: Application to the Synthesis of Naloxone and Analogues
摘要:
Naloxone 2 was obtained by demethylation of N-allylnoroxycodone 1 with methane sulfonic acid/methionine. This reagent is an excellent substitute for boron tribromide. It was used for the synthesis of analogous derivatives with variable results.