InChI=1/C19H23NO4/c1-11(2)16-9-15(5-6-17(16)21)24-19-12(3)7-14(8-13(19)4)20-10-18(22)23/h5-9,11,20-21H,10H2,1-4H3,(H,22,23)/p-1/fC19H22NO4/q-1 E9E920880A975E9E