Showing structure for (2r)-13-methyl-7-(3-methylbut-2-en-1-yl)-12-[(3-methylbut-2-en-1-yl)oxy]-9-azatricyclo[9.4.0.0³,⁸]pentadeca-1(11),3,5,7,9,12,14-heptaene-2,4,10,15-tetrol