InChI=1S/C51H98O5/c1-4-7-10-13-16-19-22-24-25-26-28-31-34-37-40-43-46-54-47-49(48-55-50(52)44-41-38-35-32-29-21-18-15-12-9-6-3)56-51(53)45-42-39-36-33-30-27-23-20-17-14-11-8-5-2/h20,23,49H,4-19,21-22,24-48H2,1-3H3/b23-20-/t49-/m1/s1