InChI=1/C20H26N2O7/c1-11-5-6-13(29-11)9-22(16(27)10-23)18(19(28)21-20(2,3)4)17-14(25)7-12(24)8-15(17)26/h5-8,18,23-26H,9-10H2,1-4H3,(H,21,28)/t18-/m1/s1/f/h21H	E66A2768B7F74A43