003692: InChI=1.12Beta/C20H16N2O4/c23-17-11-15(13-7-3-1-4-8-13)19(25)21-18(24)12-16(20(26)22(17)21)14-9-5-2-6-10-14/h1-10H,11-12H2,15-16H/t15-,16-/m1/s1