Showing structure for methyl 17-ethyl-5-[15-ethylidene-18-(methoxycarbonyl)-17-methyl-10,17-diazatetracyclo[12.3.1.0³,¹¹.0⁴,⁹]octadeca-3(11),4,6,8-tetraen-12-yl]-6-methoxy-3,13-diazapentacyclo[13.3.1.0²,¹⁰.0⁴,⁹.0¹³,¹⁸]nonadeca-2(10),4,6,8-tetraene-1-carboxylate