| 摘要 |
Disclosed are a compound represented by the formula (I) below, and a method for producing such a compound. In the formula (I) below, X represents a halogen atom and R1 represents a-COR2 group, wherein R2 represents an OM group or a C1-12 alkyloxy group, with M representing a hydrogen atom, an alkali metal, an alkaline earth metal or a quaternary ammonium. By using this compound as a synthetic intermediate, a carbapenem derivative having excellent antibacterial activity can be efficiently and safely produced at low cost.
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