Compounds of the general formula I:
and their pharmaceutically acceptable salts and in vivo hydrolysable esters, in which
one of R' and R2 denotes hydrogen, the other of R' and R2 denotes an unsubstituted or substituted non-aromatic heterocyclyl group bonded through a carbon atom thereof, and R3 denotes hydrogen or an organic group are novel compounds with β-lactamase inhibitory and anti. bacterial properties.
通式 I 的化合物
及其药学上可接受的盐类和体内可
水解的
酯类,其中
R'和 R2 中的一个表示氢,R'和 R2 中的另一个表示通过其碳原子键合的未取代或取代的非芳香杂环基,R3 表示氢或有机基团,这些化合物是具有β-内酰胺酶抑制和抗菌特性的新型化合物。