004293: InChI=1.12Beta/C19H22N2O4/c1-24-17-9-4-14(5-10-17)3-8-16(20-22)13-19(21-23)15-6-11-18(25-2)12-7-15/h1-2H3,3-12H,13H2,19H,21-23H/b8-3-,20-16+/t19-/m0/s1