646999-47-5 1,3-Piperazinedicarboxylic acid,4-[[4-[2-(5-methyl-2-phenyl-4-oxazolyl)ethoxy]phenyl]methyl]-,1-(4-bromophenyl) ester
499780-47-1 1,3-Piperazinedicarboxylic acid, 4-(2,4,6-trifluorophenyl)-,1-(1,1-dimethylethyl) 3-ethyl ester