InChI=1S/C21H29N3O5/c1-13-9-20(2,3)12-21(10-13)18(26)24(19(27)23-21)11-17(25)22-14-6-7-15(28-4)16(8-14)29-5/h6-8,13H,9-12H2,1-5H3,(H,22,25)(H,23,27)