InChI=1/C20H21N3O5/c1-15-17(8-5-9-18(15)23(26)27)20(25)28-14-19(24)22-12-10-21(11-13-22)16-6-3-2-4-7-16/h2-9H,10-14H2,1H3 11216FD8B4EE928D