InChI=1/C20H21N3O4/c1-3-27-17-11-9-15(10-12-17)18(13-22(25)26)19-14(2)21-23(20(19)24)16-7-5-4-6-8-16/h4-12,18,24H,3,13H2,1-2H3/t18-/m1/s1	1A32CCFDFB8EC0F1