a novel class of antibacterial agents
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[(3S,4S)-3-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-2-oxo-4-((R)-3-oxo-tetrahydro-thiopyran-2-yl)-azetidin-1-yl]-(triphenyl-λ5-phosphanylidene)-acetic acid allyl ester
