p. 5833 - 5847
(2007/10/02)p. 6043 - 6046
(2007/10/02)(6R,7R)-benzhydryl 3-hydroxy-8-oxo-7-(2-phenylacetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate
tributyl(1-ethoxyvinyl)stannane
(6R,7R)-benzhydryl 8-oxo-7-(2-phenylacetamido)-3-(((trifluoromethyl)sulfonyl)oxy)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate
(6R,7R)-8-Oxo-7-phenylacetylamino-3-trifluoromethanesulfonyloxy-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid benzhydryl ester