3-(4-Chloro-phen-oxy)-1-(4-meth-oxy-phen-yl)-4-(4-nitro-phen-yl)azetidin-2-one.

3-(4-Chloro-phen-oxy)-1-(4-meth-oxy-phen-yl)-4-(4-nitro-phen-yl)azetidin-2-one.