Showing structure for methyl 6',15'-dihydroxy-3-methoxy-4'-methyl-13'-{[2-(2-methylbut-3-en-2-yl)-1h-indol-3-yl]methylidene}-2,5,12'-trioxo-2'-oxa-11',14'-diazaspiro[cyclohexane-1,10'-tetracyclo[7.6.1.0¹,¹¹.0³,⁸]hexadecane]-3,3'(8'),4',6',14'-pentaene-7'-carboxylate