Showing structure for methyl (1r,3r,4r,10s,14r,16e,18r)-18-(hydroxymethyl)-14-methyl-15,19-dioxo-12-azapentacyclo[10.6.1.1¹,⁴.0¹⁰,¹⁸.0⁷,²⁰]icosa-7(20),16-diene-3-carboxylate