InChI=1S/C19H29N3O8/c23-12-5-1-10(2-6-12)21-17(28)15(16(27)20-9-14(25)26)18(29)22(19(21)30)11-3-7-13(24)8-4-11/h10-13,15,17,23-24,28H,1-9H2,(H,20,27)(H,25,26)/t10-,11?,12-,13-,15?,17?