Enviar rexistro por email: 14-Eth­oxy-4,6,9-trimethyl-8,12-dioxa-4,6-diaza­tetra­cyclo­[8.8.0.0(2,7).0(13,18)]octa­deca-2(7),13,15,17-tetra­ene-3,5,11-trione