Compounds of formula (I) and their derivatives:
wherein X is hydrogen or a group NHR¹, wherein R¹ is hydrogen or an amino protecting group, and R is an optionally substituted spiro, fused or bridged bicyclic group optionally containing one or more heteroatoms selected from oxygen, nitrogen and sulphur, are new and useful in the treatment of bacterial infections in humans and animals.
式(I)化合物及其衍
生物:
其中 X 是氢或基团 NHR¹,其中 R¹ 是氢或
氨基保护基团,R 是任选取代的螺环、融合或桥接双环基团,任选含有一个或多个选自氧、氮和
硫的杂原子,这些化合物是治疗人类和动物细菌感染的新型有用药物。