Provided are a new antimicrobial agent compound as shown in the following general formula (I), a pharmaceutically acceptable salt thereof, an ester thereof, a prodrug thereof, a solvate thereof, a deuterated compound thereof, or a stereoisomer thereof. The compound of the present invention exhibits an excellent antibacterial activity, in particular an excellent antibacterial activity against gram bacteria. In the formula, the definition of each group is as set forth in the description.
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