antibioticcgp9000

(6r-(6-alpha,7-beta(r*)))-ien-1-ylacetyl)amino)-3-methoxy-8-oxo

7-(d-2-amino-2-(1,4-cyclohexadienyl)acetamide)-3-methoxy-3-cephem-4-carboxyl

7-[2-aMino-2-(cyclohexa-2,5-dien-1-yl)acetaMido]-3-Methoxy-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid