Showing structure for methyl (1s,14s,15z)-15-ethylidene-13-formyl-3-methyl-3,17-diazapentacyclo[12.3.1.0²,¹⁰.0⁴,⁹.0¹²,¹⁷]octadeca-2(10),4,6,8-tetraene-13-carboxylate