InChI=1/C20H25N3O5/c1-18(2)19(3)9-10-20(18,17(25)22(4)5)12-15(19)21-28-16(24)13-7-6-8-14(11-13)23(26)27/h6-8,11H,9-10,12H2,1-5H3/b21-15+/t19-,20+/m0/s1 B2BB64B22A9C0BF7