InChI=1/C18H17NO4/c1-11(18(21)19(2)22)12-7-8-16-15(9-12)17(20)14-6-4-3-5-13(14)10-23-16/h3-9,11,22H,10H2,1-2H3/t11-/m1/s1 A50D79ABB1C683C4