InChI=1S/C49H77NO4/c1-4-6-8-10-12-14-16-18-20-22-24-26-28-33-45(51)53-44-36-35-41-39-43-47-40(37-38-50(43)3)31-30-32-42(47)48(41)49(44)54-46(52)34-29-27-25-23-21-19-17-15-13-11-9-7-5-2/h30-32,35-36,43H,4-29,33-34,37-39H2,1-3H3/t43-/m1/s1