p. 6495 - 6498
(2007/10/03)(3R,4S)-1-(tert-Butyl-dimethyl-silanyl)-3-(1-methoxy-1-methyl-ethoxy)-4-phenyl-azetidin-2-one
(3R,4S)-1-(tert-Butyl-dimethyl-silanyl)-3-hydroxy-3-methyl-4-phenyl-azetidin-2-one
(3R,4S)-1-(tert-Butyl-dimethyl-silanyl)-3-hydroxy-4-phenyl-azetidin-2-one
(S)-1-(tert-Butyl-dimethyl-silanyl)-4-phenyl-azetidine-2,3-dione
(3R-cis)-3-(1-methoxy-1-methylethoxy)-4-phenyl-2-azetidinone