The existing carbapenem compounds which have been developed and placed on the market are poorly absorbed at the digestive tract, and hence, they have been merely used in the clinical field in the form of an injection such as intravenous injections. However, in the clinical field, it is desirable to select several administration routes when a medicament is administered from the viewpoint of patient's conditions and therapeutic purpose, etc. Especially, oral antibacterial agents are more easily administered to a patient as compared with an injection, and are more convenient with respect to the home treatment of patients, so that the clinical usability of oral antibacterial agents is quite high. Accordingly, it has been strongly desired in the clinical field to develop carbapenem compounds having a wide antibacterial spectrum and a high antibacterial activity as well as being able to be orally administered.