(3R,αS)-3-(N-α-methyl-4-methoxybenzylamino)pent-4-enoic acid

tert-butyl (3R,αS)-3-(N-benzyl-N-α-methyl-4-methoxybenzylamino)pent-4-enoate

1-(p-anisyl)-4-(R)-vinyl-azetidin-2-one

1-(p-anisyl)-4-[1',2'-dihydroxyethyl]azetidin-2-one

(4S)-1-(p-anisyl)-3-iodo-4-[(S)-2',2'-dimethyl-1',3'-dioxalan-4-yl]azetidin-2-one