REGIOSELECTIVE TRANSFORMATION OF UNSYMMETRICAL BIS(N-NITROSOSULFONAMIDES) LEADING TO OPTICALLY ACTIVE CYCLIC IMINO ACID DERIVATIVES FROM l-LYSINE AND l-ORNITHINE

Abstract Chiral cyclic imino acid derivatives were prepared from unsymmetrical bis(N-nitrososulfonamides) of diaminocarboxylic acids, l-lysine and l-ornithine, in good yields through kinetically controlled regioselective N-nitrososulfonamide-sulfonate rearrangement.