Showing structure for methyl 12-ethyl-4-hydroxy-5-methoxy-16-oxo-14-oxa-8,17-diazahexacyclo[10.7.1.0¹,⁹.0²,⁷.0¹³,¹⁵.0¹⁷,²⁰]icosa-2,4,6,9-tetraene-10-carboxylate