InChI=1S/C39H73NO9/c1-3-5-7-9-11-13-15-16-18-19-21-23-25-27-32(42)31(30-48-39-37(46)36(45)35(44)34(29-41)49-39)40-38(47)33(43)28-26-24-22-20-17-14-12-10-8-6-4-2/h18-19,25,27,31-37,39,41-46H,3-17,20-24,26,28-30H2,1-2H3,(H,40,47)/b19-18-,27-25-