p. 1621 - 1622
(2007/10/02)p. 6317 - 6320
(2007/10/02)methyl bromide
sodium 2-bromoacetate
N-[(2R,3S)-2-(2-Furan-2-yl-ethyl)-4-oxo-azetidin-3-yl]-2-phenoxy-acetamide
methyl 2-phenoxyacetate
[(2R,3S)-3-Amino-2-(2-furan-2-yl-ethyl)-4-oxo-azetidin-1-yl]-acetic acid methyl ester
[(2R,3S)-2-(2-Furan-2-yl-ethyl)-4-oxo-3-(2-phenoxy-acetylamino)-azetidin-1-yl]-acetic acid 4-methyl-benzyl ester
[(2R,3S)-2-(2-Furan-2-yl-ethyl)-4-oxo-3-(2-phenoxy-acetylamino)-azetidin-1-yl]-acetic acid benzyl ester
[(3S,4R)-2-Oxo-3-(2-phenoxy-acetylamino)-4-(2-phenylsulfanylcarbonyl-ethyl)-azetidin-1-yl]-acetic acid methyl ester
(6R,7S)-3-Hydroxy-8-oxo-7-(2-phenoxy-acetylamino)-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid methyl ester
3-[(2R,3S)-1-Methoxycarbonylmethyl-4-oxo-3-(2-phenoxy-acetylamino)-azetidin-2-yl]-propionic acid