Showing structure for 2-[19-(acetyloxy)-10-hydroxy-13,14,18,18-tetramethyl-7-oxo-2-oxa-6-azapentacyclo[11.8.0.0¹,¹⁷.0³,¹¹.0⁴,⁸]henicosa-3(11),4(8),9-trien-6-yl]-3-methylbutanoic acid