A novel and versatile process for producing β-lactam compounds of the general formula
wherein R1 represents a hydrogen atom or a methyl or hydroxyl group, R2 represents a hydrogen atom or an ester residue, and Rs represents the group R3 or-CO-R3 in which R3 represents a monovalent organic group, and salts of compounds of formula (I) in which R2 is a hydrogen atom, starting from a compound of the general formula
wherein Y represents an amino group which may be protected, or its N-oxide,
and some novel β-lactam compounds produced by the aforesaid process.
一种生产通式β-内酰胺化合物(其中 R1 代表氢原子或甲基或羟基,R2 代表氢原子或酯残基,Rs 代表基团 R3 或-CO-R3,其中 R3 代表一价有机基团)和通式(Ⅰ)化合物(其中 R2 为氢原子)的盐的新型多功能工艺,该工艺以通式化合物(其中 Y 代表可被保护的
氨基或其 N-氧化物)为起点,以及通过上述工艺生产的一些新型β-内酰胺化合物。