Compounds having the formula:
wherein n is 0, 1 or 2;
X is OH or OCOR2m wherein R2 is hydrogen or (C,-C.) alkyl;
R is hydrogen, a radical group forming an ester hydrolyzable under physiological conditions, or an acyloxymethyl or 1-(acyloxy)ethyl radical derived from a convential beta-lactam antibiotic; and
R' is selected from a wide range of alkyl, cycloalkyl, aryl, aralkyl, heterocyclyl or heterocyclylalkyl groups
and their pharmaceutically acceptable salts.
These compounds are useful as antibacterials and/or beta-lactamase inhibitors.
具有以下式子的化合物: 其中 n 是 0、1 或 2;X 是 OH 或 OCOR2m,其中 R2 是
氢或 (C,-C.)烷基;R 是
氢、形成在生理条件下可
水解的
酯的基团、或来自常规 β-内
酰胺抗生素的酰
氧基
甲基或 1-(酰
氧基)乙基;R'选自范围广泛的烷基、
环烷基、芳基、芳烷基、杂
环烷基或杂
环烷基及其药学上可接受的盐。 这些化合物可用作抗菌剂和/或
β-内酰胺酶抑制剂。