InChI=1S/C14H22N2O5/c1-21-13-6-9(2-3-11(13)18)12(19)7-14(20)16-8-10(17)4-5-15/h2-3,6,10,12,17-19H,4-5,7-8,15H2,1H3,(H,16,20)