p. 6981 - 6984
(1997)p. 9210 - 9216
(2007/10/03)p. 6317 - 6320
(2007/10/02)p. 2321 - 2324
(2007/10/02)[(2R,3S)-2-(2-Furan-2-yl-ethyl)-4-oxo-3-(2-phenoxy-acetylamino)-azetidin-1-yl]-acetic acid 4-nitro-benzyl ester
3-[(2R,3S)-1-(4-Nitro-benzyloxycarbonylmethyl)-4-oxo-3-(2-phenoxy-acetylamino)-azetidin-2-yl]-propionic acid
cis-4-oxo-3-[(phenoxyacetyl)amino]-2-azetidinepropanoic acid
1-benzyl-3β-((S)-2-oxo-4-phenyloxazolidin-3-yl)-4β-[2-(2-furyl)ethyl]azetidin-2-one
N-[(2R,3S)-2-(2-Furan-2-yl-ethyl)-4-oxo-azetidin-3-yl]-2-phenoxy-acetamide
carbacephalosporin hydrochloride
(6R,7S)-3-Chloro-8-oxo-7-(2-phenoxy-acetylamino)-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid 4-nitro-benzyl ester
loracarbef
(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
diphenylmethyl 7β-<2-<2-<<(tert-butyloxy)carbonyl>amino>thiazol-4-yl>-2(Z)-(methoxyimino)acetamido>-3-<<(trifluoromethyl)sulfonyl>oxy>-1-carba-1-dethia-3-cephem-4-carboxylate