6α-[[(R)-[[(2-Oxo-1-imidazolidinyl)carbonyl]amino]phenylacetyl]amino]penicillanic acid | 3,3-Dimethyl-7-oxo-6-[[[[(2-oxoimidazolidin-1-yl)carbonyl]amino]phenylacetyl]amino]-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid |
3,3-Dimethyl-6-oxo-7-[2-(2-oxoimidazolidin-1-yl)carbonylamino-2-phenyl-acetyl]amino-2-thia-5-azabicyclo[3.2.0]heptane-4-carboxylic acid | [2S-[2a,5a,6(s*)]]3,3-dimethyl-7-oxo-6{[[[[(2-oxoimideazolidine-1-yl)carbonyl]amino]phenylacethyl]-amino]-4-thia-1-azabicyclo[3,2,0]-heptane-2-carboxylic acid |
