ethyl 4,10-bis(4-ethylphenyl)-1,14-dimethyl-3,5,9,11-tetraoxo-4,10-diazatetracyclo[5.5.2.0~2,6~.0~8,12~]tetradec-13-ene-13-carboxylate | ethyl 4,10-bis(4-ethylphenyl)-1,14-dimethyl-3,5,9,11-tetraoxo-4,10-diazatetracyclo[5.5.2.0~2,6~.0~8,12~]tetradec-13-ene-13-carboxylate | 485755-07-5 |