InChI=1/C22H26N2O4/c1-28-20-9-5-8-17(14-20)22(25)15-21(16-6-3-2-4-7-16)23-18-10-12-19(13-11-18)24(26)27/h5,8-14,16,21,23H,2-4,6-7,15H2,1H3/t21-/m0/s1 B2439811FDEDF2B2