Showing structure for (1'r,2r,4s,4's,5s,6s,8'r,10'e,13'r,14'e,16'e,20'r,21'r,24's)-6-[(2e)-but-2-en-2-yl]-4,24'-dihydroxy-21'-methoxy-5,11',13',22'-tetramethyl-3',7',19'-trioxaspiro[oxane-2,6'-tetracyclo[15.6.1.1⁴,⁸.0²⁰,²⁴]pentacosane]-10',14',16',22'-tetraen-2'-one