InChI=1S/C20H27N3O5/c1-7-12(4)20(27-6)19-21-17-14(10-13(26-5)8-9-28-17)18(25)23(19)15(11(2)3)16(24)22-20/h8-12,15H,7H2,1-6H3,(H,22,24)/t12-,15+,20+/m0/s1