InChI=1S/C20H27N3O4/c1-7-12(4)20(27-6)19-21-15-9-8-13(26-5)10-14(15)18(25)23(19)16(11(2)3)17(24)22-20/h8-12,16H,7H2,1-6H3,(H,22,24)/t12-,16+,20+/m0/s1