InChI=1/C19H19NO4/c1-11-6-18(23)24-17-7-12(4-5-13(11)17)20-10-14-15(21)8-19(2,3)9-16(14)22/h4-7,10,21H,8-9H2,1-3H3/p-1/fC19H18NO4/h21h/q-1 A00C3C44CFC31C2F