Showing structure for (1s,13r,14s,17s,19s)-10-hydroxy-7-imino-13,14,18,18-tetramethyl-2-oxa-6-azapentacyclo[11.8.0.0¹,¹⁷.0³,¹¹.0⁴,⁸]henicosa-3(11),4(8),9-trien-19-yl acetate