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:
1
wherein R
1
represents H or methyl; R
2
and R
3
represent H, a halogen atom, alkyl or the like; and R
4
represents substituted lower alkylthio or the like.
本发明的目标是提供一种对MRSA、PR
SP、流感病毒和β-内酰胺酶产生菌有强效抗生素活性并且稳定对
DHP-1的碳青霉烯衍
生物。本发明的化合物是由式(I)或其药学上可接受的盐所表示的化合物:1其中R1代表H或甲基;R2和R3代表H、卤素原子、烷基或类似物;R4代表取代的低级烷基
硫或类似物。