InChI=1S/C28H34N4O8/c1-14(13-33)7-21(28(38)39)31-26(36)22-9-15-10-23(34)25(40-2)24(35)18(15)12-32(22)27(37)19(29)8-16-11-30-20-6-4-3-5-17(16)20/h3-6,10-11,14,19,21-22,30,33-35H,7-9,12-13,29H2,1-2H3,(H,31,36)(H,38,39)/t14?,19-,21-,22-/m0/s1