105628-99-7 2-Furancarboxylic acid,2-[4-[[[[(4-cyclohexyl-2,3-dioxo-1-piperazinyl)carbonyl]amino]phenylacetyl]amino]-3-oxo-2-isoxazolidinyl]tetrahydro-5-oxo-, monosodium salt
105628-97-5 2-Furancarboxylic acid,2-[4-[[[(cyanomethyl)thio]acetyl]amino]-3-oxo-2-isoxazolidinyl]tetrahydro-5-oxo-, monosodium salt