p. 687 - 695
(2007/10/02)p. 339 - 342
(2007/10/02)(6R,7R)-3-Methylene-8-oxo-7-[2,2,2-trichloro-eth-(E)-ylideneamino]-5-oxa-1-aza-bicyclo[4.2.0]octane-2-carboxylic acid benzhydryl ester
(R)-7-[(Z)-2,2-Dichloro-vinylimino]-3-methylene-8-oxo-5-oxa-1-aza-bicyclo[4.2.0]octane-2-carboxylic acid benzhydryl ester
(2R,6R,7R)-7-Amino-3-methylene-8-oxo-5-oxa-1-aza-bicyclo[4.2.0]octane-2-carboxylic acid benzhydryl ester
C22H20N2O4S
(2R,6R,7R)-7-Amino-7-methoxy-3-methylene-8-oxo-5-oxa-1-aza-bicyclo[4.2.0]octane-2-carboxylic acid benzhydryl ester