AZETIDINONE DERIVATIVES, A PROCESS FOR THEIR PREPARATION AND A METHOD FOR PRODUCING 1-β-ALKYL AZETIDINONE USING THE SAME

摘要

The present invention relates to new azetidinone derivatives represented formula 2, synthetic process of that, and synthetic process of 1-β-alkyl azetidinone using that. According to the present invention, 1-β-alkyl azetidinone is synthesized only with a general base and reactant in high yield using new azetidinone derivatives without any additional protecting group.