N-{[4-((2R,3R)-1-(4-fluorophenyl)-3-{[2-(4-fluorophenyl)-2-oxoethyl]thio}-4-oxoazetidin-2-yl)phenoxy]acetyl}glycyl-D-valine

tert-butyl (4-{(1S,2R)-2-{[(5,5-dimethyl-2-phenyl-1,3-dioxan-2-yl)methyl]thio}-1-[(4-fluorophenyl)amino]-3-oxo-3-[(4S)-2-oxo-4-phenyl-1,3-oxazolidin-3-yl]propyl}phenoxy)acetate

(4-{(2R,3R)-1-(4-fluorophenyl)-4-oxo-3-[(2-oxo-2-phenylethyl)thio]azetidin-2-yl}phenoxy)acetic acid