p. 2287 - 2308
(2007/10/03)(3S,4R)-3-<(1R)-1-triethylsilyloxyethyl>-4-<(1R)-1-(4-azidobutyl)-2-oxo-3-acetoxypropyl>-2-azetidinone
(3S,4R)-3-<(1R)-1-tert-butyldimethylsilyloxyethyl>-4-<(1R)-1-(4-azidobutyl)-2-oxo-3-acetoxypropyl>-2-azetidinone
(3S,4R)-3-<(1R)-1-tert-butyldimethylsilyloxyethyl>-4-<(1R)-1-(4-hydroxybutyl)-2-oxo-3-acetoxypropyl>-2-azetidinone
(3S,4R)-3-<(1R)-1-tert-butyldimethylsilyloxyethyl>-4-<(1R)-1-(3-formylpropyl)-2-oxo-3-acetoxypropyl>-2-azetidinone
Acetic acid (S)-6-{(2R,3S)-3-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-4-oxo-azetidin-2-yl}-cyclohex-1-enylmethyl ester
(3S,4R)-3-<(1R)-1-triethylsilyloxyethyl>-4-<(1R)-1-(4-tert-butoxycarbonylaminobutyl)-2-oxo-3-acetoxypropyl>-1-(2-diphenylmethoxycarbonyl-1-triphenylphosphoranylideneethyl)-2-azetidinone
[(2R,3S)-2-[(R)-5-tert-Butoxycarbonylamino-1-(2-hydroxy-acetyl)-pentyl]-4-oxo-3-((R)-1-triethylsilanyloxy-ethyl)-azetidin-1-yl]-(triphenyl-λ5-phosphanylidene)-acetic acid benzhydryl ester
benzhydryl (1S,5R,6S)-1-(4-tert-butoxycarbonylaminobutyl)-2-(1,3,4-thiadiazol-2-yl)thiomethyl-6-<(1R)-1-triethylsilyloxyethyl>carbapen-2-em-3-carboxylate
benzhydryl (1S,5R,6S)-1-(4-tert-butoxycarbonylaminobutyl)-2-hydroxymethyl-6-<(1R)-1-triethylsilyloxyethyl>carbapen-2-em-3-carboxylate