InChI=1/C18H17NO4/c1-19(22)17(20)9-7-12-6-8-16-15(10-12)18(21)14-5-3-2-4-13(14)11-23-16/h2-6,8,10,22H,7,9,11H2,1H3 A78D8ACE5C97C848