1,3,4-Oxadiazol-2(3H)-one, 5-(1,3-benzodioxol-5-yl)-3-((phenylamino)methyl)- 5-(1,3-Benzodioxol-5-yl)-3-((phenylamino)methyl)-1,3,4-oxadiazol-2(3H)-one 73484-47-6