| 摘要 |
A compound represented by the general formula (I): (I) wherein R1 represents methyl, fluoromethyl, methoxymethyl, acetoxymethyl, hydroxymethyl, or methylene; R2 represents hydrogen, C1-3 alkyl, or a pharmaceutically acceptable ester group of a cation and a prodrug; R3 represents hydrogen or halogeno; R4 represents hydrogen, C1-3 alkyl, fluoromethyl, trifluoromethyl, or fluorine; and R5 represents hydrogen or fluorine. It has excellent antibacterial activity against gram-positive bacteria, in particular, resistant bacteria such as MRSA, PRSP, and VRE.
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