287489-35-4
(2R,6R)-3-((Z)-2-Chloro-2-methoxycarbonyl-vinyl)-8-oxo-7-[1-pyridin-2-yl-meth-(Z)-ylidene]-5-thia-1-aza-bicyclo[4.2.0]oct-3-ene-2-carboxylic acid benzhydryl ester
287489-42-3
(R)-3-((E)-Buta-1,3-dienyl)-5,5,8-trioxo-7-[1-pyridin-2-yl-meth-(Z)-ylidene]-5λ6-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid benzhydryl ester
287489-38-7
(R)-3-((E)-2-Cyano-vinyl)-5,5,8-trioxo-7-[1-pyridin-2-yl-meth-(Z)-ylidene]-5λ6-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid benzhydryl ester
287488-94-2
(2R,6R)-3-Formyl-8-oxo-7-[1-pyridin-2-yl-meth-(Z)-ylidene]-5-thia-1-aza-bicyclo[4.2.0]oct-3-ene-2-carboxylic acid benzhydryl ester
287489-36-5
(2R,6R)-3-((E)-Buta-1,3-dienyl)-8-oxo-7-[1-pyridin-2-yl-meth-(Z)-ylidene]-5-thia-1-aza-bicyclo[4.2.0]oct-3-ene-2-carboxylic acid benzhydryl ester