InChI=1S/C15H22N2O5/c1-21-12-7-10(8-13(22-2)15(12)20)3-4-14(19)17-6-5-11(18)9-16/h3-4,7-8,11,18,20H,5-6,9,16H2,1-2H3,(H,17,19)