005480: InChI=1.12Beta/C20H22N2O4/c1-15(23)22(14-17-10-6-3-7-11-17)18(20(25)26)12-19(24)21-13-16-8-4-2-5-9-16/h1H3,2-11H,12-14H2,18H,(H,21,24)(H,25,26)/t18-/m0/s1