InChI=1/C20H23NO5/c1-2-3-4-5-6-14-7-12-18(17(22)13-14)26-16-10-8-15(9-11-16)21-19(23)20(24)25/h7-13,22H,2-6H2,1H3,(H,21,23)(H,24,25)/p-1/fC20H22NO5/h21H/q-1 22171C52A00D509A