Showing structure for (1's,2s,3'r,4'r,10's,15'r)-3'-ethyl-12'-hydroxy-4'-methoxy-4-methyl-15'-[(2r,4r)-4-methyl-5-oxooxolan-2-yl]-13'-oxa-9',11'-diazaspiro[furan-2,2'-tetracyclo[7.4.2.0¹,¹⁰.0⁴,¹⁰]pentadecane]-5',11'-dien-5-one