InChI=1S/C20H29N3O4/c1-3-13(2)17(20(26)27)22-18(24)16-10-7-11-23(16)19(25)15(21)12-14-8-5-4-6-9-14/h4-6,8-9,13,15-17H,3,7,10-12,21H2,1-2H3,(H,22,24)(H,26,27)