allyl 2-phenoxyacetate
trans-1-(4-methoxyphenyl)-3-phenoxy-4-methyl-4-methylthio-azetidin-2-one
trans-1-(4-methoxyphenyl)-3-phenoxy-4-(n-propyl)-4-methylthio-azetidin-2-one
trans-1-(4-methoxyphenyl)-3-phenoxy-4-phenylmethyl-4-methylthio-azetidin-2-one
trans-1-(4-methoxyphenyl)-3-phenoxy-4-methyl-4-(4-nitrophenylmethyl)thio-azetidin-2-one