InChI=1/C20H19N3O4/c1-27-15-9-5-4-8-14(15)23-19(25)16(18(24)22-20(23)26)17-13-7-3-2-6-12(13)10-11-21-17/h2-9,17,21,24H,10-11H2,1H3,(H,22,26)/t17-/m1/s1/f/h24h,21-22H	197BB31DA962B8CF