There is disclosed antibacterial compounds represented by the formula ##STR1## and pharmaceutically acceptable salts or pharmaceutically acceptable esters thereof, wherein: X represents oxygen, sulfur, ##STR2## wherein R is hydrogen, loweralkyl, acetate or methoxycarbonyl; Y is cis, trans or mixtures thereof and is selected from hydroxy, lower alkoxy, aminocarbamoyloxy, methoxycarbonylamino, lower alkylcarbonyloxy, lower alkylcarbonylamino and loweralkylsulfonylamino; and the wavy lines indicate cis, trans or mixtures thereof.
披露了抗菌化合物,其
化学式为##STR1##及其药用可接受的盐或药用可接受的酯,其中:X代表氧、
硫、##STR2##其中R为氢、较低的烷基、
乙酸酯或甲氧羰基;Y为顺式、反式或它们的混合物,选择自羟基、较低的烷氧基、
氨基羰氧基、甲氧羰
氨基、较低的烷基羰氧基、较低的烷基羰
氨基和较低的烷基磺酰
氨基;波浪线表示顺式、反式或它们的混合物。