Showing structure for methyl (1r,12r,19r)-12-[(1r)-1-[(3-methylbut-2-enoyl)oxy]ethyl]-8,16-diazapentacyclo[10.6.1.0¹,⁹.0²,⁷.0¹⁶,¹⁹]nonadeca-2,4,6,9-tetraene-10-carboxylate