(3S,4S)-3-methyl-4-(2-phenylethyl)-1-(phenylmethoxy)azetidin-2-one;(3S,4S)-3-methyl-4-(2-phenylethyl)-1-(phenylmethoxy)-2-azetidinone;(3S,4S)-1-(benzyloxy)-3-methyl-4-(2-phenylethyl)azetidin-2-one
(3S,4S)-3-methyl-4-(2-phenylethyl)-1-(phenylmethoxy)azetidin-2-one