InChI=1S/C53H104O5/c1-3-5-7-9-11-13-15-17-19-21-22-23-24-25-26-27-28-29-30-32-34-36-38-40-42-44-46-48-53(56)58-51(49-54)50-57-52(55)47-45-43-41-39-37-35-33-31-20-18-16-14-12-10-8-6-4-2/h51,54H,3-50H2,1-2H3/t51-/m1/s1