InChI=1/C21H21NO5/c1-26-15-6-3-5-13(11-15)14-9-10-18(19(12-14)27-2)22-20(23)16-7-4-8-17(16)21(24)25/h3,5-6,9-12H,4,7-8H2,1-2H3,(H,22,23)(H,24,25)/p-1/fC21H20NO5/h22H/q-1 B4DAAF4D1B97D9FD