InChI=1S/C52H97NO18/c1-3-5-7-9-11-13-15-17-19-21-23-25-27-29-36(57)35(53-40(58)30-28-26-24-22-20-18-16-14-12-10-8-6-4-2)34-66-50-46(64)43(61)48(38(32-55)68-50)71-52-47(65)44(62)49(39(33-56)69-52)70-51-45(63)42(60)41(59)37(31-54)67-51/h27,29,35-39,41-52,54-57,59-65H,3-26,28,30-34H2,1-2H3,(H,53,58)/b29-27+