InChI=1/C19H19N3O5/c1-4-7-20-11(2)8-15(12(20)3)17(23)10-21-18(24)14-6-5-13(22(26)27)9-16(14)19(21)25/h5-6,8-9H,4,7,10H2,1-3H3 CD51B4EE1E3A81A2