Disclosed are phosphate-containing dimers of (5R)-3-[3-fluoro-4-[6-(2-methyl-2H-tetrazol-5-yl)-3-pyridinyl]phenyl]-5-(hydroxymethyl)-2-oxazolidinone, having antibiotic activity in vivo upon cleaving, wherein M is OR1 wherein R1 is H, or a pharmaceutically acceptable cation. Also disclosed are compositions comprising such compounds and also the use of such for treating or preventing an bacterial infection.本發明涉及藥物領域,具體涉及含有噁唑烷酮的二聚體化合物、組合物以及製備方法和用途。本發明特別涉及一種具有 結構的化合物,其中每個Z爲;其中*爲Z與P的結合點,M爲OR1R1爲H或者藥學上可接受的陽離子。