An objective of the present invention is to provide carbapenem derivatives which have potent antibiotic activity against MRSA, PRSP, Influenzavirus, and &bgr;-lactamase-producing bacteria and are stable against DHP-1. The compounds according to the present invention are compounds represented by formula (I) or pharmaceutically acceptable salts thereof:
wherein R1 represents H or methyl; R2 and R3 represent H, a halogen atom, alkyl or the like; and R4 represents substituted lower alkylthio or the like.
本发明的目的是提供一种对M
RSA、PR
SP、流感病毒和β-内
酰胺酶产生菌具有强效
抗生素活性且对
DHP-1稳定的头孢
烯类衍
生物。根据本发明,化合物是由式(I)或其药学上可接受的盐所表示的化合物:其中R1代表
氢或
甲基;R2和R3代表
氢、卤素原子、烷基或类似物;R4代表取代的较低烷基
硫醚或类似物。