1,3,4-Oxadiazol-2(3H)-one, 5-methoxy-3-(2-methoxyphenyl)- 2-Methoxy-4-(o-methoxyphenyl)-delta(sup 2)-1,3,4-oxadiazolin-5-one 3-(2-Methoxyphenyl)-5-methoxy-1,3,4-oxadiazol-2(3H)-one 32861 R.P. 60589-06-2