METHOD FOR FORMING DISULFIDE BRIDGES

摘要

The present invention relates to an improved method of formation of disulfide bridges in substances bearing SH groups, in particular peptides, for example by formation of intramolecular disulfide bridges, in which a heterocyclic compound having at least one nitrogen atom (e.g. caffeine or a caffeine-like substance) is used for catalysis of the reaction. It was found, surprisingly, that addition of the heterocyclic substance increases both the yield and the purity of the product bearing disulfide bridges.