InChI=1/C19H21N3O5/c23-11-17(18(24)13-5-8-14(9-6-13)22(26)27)21-19(25)20-16-10-7-12-3-1-2-4-15(12)16/h1-6,8-9,16-18,23-24H,7,10-11H2,(H2,20,21,25)/t16-,17+,18-/m1/s1/f/h20-21H C219BEF62041E169