(3R,4S)-1-(tert-Butyl-dimethyl-silanyl)-3-hydroxy-3-methyl-4-phenyl-azetidin-2-one

1-(4-Methoxyphenyl)-3-triisopropylsilyloxy-4-phenyl-2-azetidinone

(3R,4S)-3-羟基-4-苯基-2-氮杂环丁酮

(3R-cis)-3-(1-methoxy-1-methylethoxy)-4-phenyl-2-azetidinone