InChI=1S/C22H26N2O5/c1-4-13-10-23(12-25)19-9-22(20-8-15(13)16(19)11-29-20)17-6-5-14(27-2)7-18(17)24(28-3)21(22)26/h4-7,12,15-16,19-20H,8-11H2,1-3H3/b13-4+/t15-,16-,19-,20+,22-/m0/s1