1-(4-aminobutyl)-4-phenylazetidin-2-one

1-[3-(ethylamino)propyl]-4-phenylazetidin-2-one

4-phenyl-1-[4-(prop-2-enylamino)butyl]azetidin-2-one

4-phenyl-1-[3-(propan-2-ylamino)propyl]azetidin-2-one

1-methyl-4-phenylazetidin-2-one