1,3,4-oxadiazole, 2-[4-(1,1-dimethylethyl)phenyl]-5-(4-methoxyphenyl)- 2-(4-tert-butylphenyl)-5-(4-methoxyphenyl)-1,3,4-oxadiazole InChI=1/C19H20N2O2/c1-19(2,3)15-9-5-13(6-10-15)17-20-21-18(23-17)14-7-11-16(22-4)12-8-14/h5-12H,1-4H