2,3,11,12,13,14,15,16,26,26,26a-undecahydroxy-5,9,18,23,25-pentaoxo-5,7a,9,18,20,21,21a,23,25,26,26a,26b-dodecahydro-7H-21,7-(epoxymethano)-1,6,8,19,22-pentaoxadibenzo[5',6':7',8']cyclododeca[1',2':7,8]cycloundeca[1,2,3,4-def]fluoren-28-yl 3,4,5-trihydrox