(2008/06/13)
p. 2321 - 2324
(2007/10/02)(R)-Phenylglycine methyl ester
(6R*,7S*)-3-chloro-7-amino-8-oxo-1-azabicyclo<4.2.0>oct-2-en-2-carboxylic acid
(6R,7S)-3-Chloro-7-[(R)-2-((E)-2-methoxycarbonyl-1-methyl-vinylamino)-2-phenyl-acetylamino]-8-oxo-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid 4-nitro-benzyl ester
(6R,7S)-7-(1,3-Dioxo-1,3-dihydro-isoindol-2-yl)-8-oxo-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid tert-butyl ester
tert-butyl (6R*,7S*)-3-chloro-7-amino-8-oxo-1-azabicyclo<4.2.0>oct-2-en-2-carboxylate