(4S,6R,7S)-7-{2-[2-(2-Chloro-acetylamino)-thiazol-4-yl]-2-[(Z)-methoxyimino]-acetylamino}-4-methyl-8-oxo-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid

<2R-trans-(Z)>-<3-<<<2<(chloroacetyl)amino>-4-thiazolyl>(methoxyimino)acetyl>amino>-4-oxo-2-azetidinyl>(phenylthio)propanedioic acid dimethyl ester