107515-04-8
(3S,4R)-1-<<(allyloxy)carbonyl>(triphenylphosphoranylidene)methyl>-3-<(1R)-1-<(tert-butyldimethylsilyl)oxy>ethyl>-4-<(1R)-1-<<4'-<<(tert-butyldimethylsilyl)oxy>methyl>phenyl>carbonyl>ethyl>azetidin-2-one
107515-08-2
(3S,4R)-1-<<(allyloxy)carbonyl>(triphenylphosphoranylidene)methyl>-3-<(1R)-1-<(tert-butyldimethylsilyl)oxy>ethyl>-4-<(1R)-1-<<4'-<<(methylsulfonyl)oxy>methyl>phenyl>carbonyl>ethyl>azetidin-2-one
104618-36-2
(3S,4R)-1-<<(allyloxy)carbonyl>(triphenylphosphoranylidene)methyl>-3-<(1R)-1-<(tert-butyldimethylsilyl)oxy>ethyl>-4-<(1R)-2'-<(pyridylthio)carbonyl>ethyl>azetidin-2-one
107514-93-2
(3S,4R)-1-<<(allyloxy)carbonyl>hydroxymethyl>-3-<(1R)-1-<(tert-butyldimethylsilyl)oxy>ethyl>-4-<(1R)-1-<<(tert-butyldimethylsilyl)oxy>carbonyl>ethyl>azetidin-2-one
107514-95-4
tert-butyldimethylsilyl (2R)-2-((2S,3S)-1-(2-(allyloxy)-1-chloro-2-oxoethyl)-3-((R)-1-((tert-butyldimethylsilyl)oxy)ethyl)-4-oxoazetidin-2-yl)propanoate