InChI=1/C20H21N3O5/c1-13-8-9-15(11-17(13)23(27)28)22-19(25)18(24)21-12-20(26)10-4-6-14-5-2-3-7-16(14)20/h2-3,5,7-9,11,26H,4,6,10,12H2,1H3,(H,21,24)(H,22,25)/t20-/m1/s1/f/h21-22H A8EE04FA847058BF