1,3,4-Oxadiazol-2(3H)-one, 3-(4-morpholinylmethyl)-5-(3,4,5-trimethoxyphenyl)- 3-(4-Morpholinylmethyl)-5-(3,4,5-trimethoxyphenyl)-1,3,4-oxadiazol-2(3H)-one 73484-46-5