InChI=1/C19H23N3O5/c1-20-18(12-13-26-16-10-6-15(7-11-16)22(24)25)14-4-8-17(9-5-14)27-19(23)21(2)3/h4-11,18,20H,12-13H2,1-3H3/p+1/t18-/m0/s1/fC19H24N3O5/h20H/q+1 516F1BE9919EF02C