1,3,5-Oxadiazol-2(3H)-one, 3-(((4-fluorophenyl)amino)methyl)-5-(3,4,5-trimethoxyphenyl)- 3-(((4-Fluorophenyl)amino)methyl)-5-(3,4,5-trimethoxyphenyl)-1,3,5-oxadiazol-2(3H)-one 73484-44-3