Showing structure for 2-[(1r,2r,5r)-2-[(1as,4as,7s,8ar)-7-hydroxy-4a-methyl-4-oxo-1ah,5h,6h,7h,8h-naphtho[1,8a-b]oxiren-3-yl]-1-methyl-5-[(2r)-6-methylheptan-2-yl]cyclopentyl]acetaldehyde