InChI=1S/C21H27N3O2/c1-6-20(4,5)21-11-15-17(25)23-16(12(2)3)18(26)24(15)19(21)22-14-10-8-7-9-13(14)21/h6-10,12,15-16,19,22H,1,11H2,2-5H3,(H,23,25)