InChI=1S/C21H41N3O3/c1-5-9-12-17(8-4)20(26)24-18(21(27)23-16-11-7-3)13-14-19(25)22-15-10-6-2/h17-18H,5-16H2,1-4H3,(H,22,25)(H,23,27)(H,24,26)