InChI=1S/C22H31N3O4/c1-24(14-15-25-12-4-3-5-13-25)20(26)16-8-10-22(11-9-16)17-6-7-18(28-2)23-19(17)21(27)29-22/h6-7,16H,3-5,8-15H2,1-2H3/t16-,22-