InChI=1/C14H17NO4/c1-2-3-4-5-6-11-9-12(14(17)19-10-11)7-8-13(16)15-18/h2-6,9,18H,7-8,10H2,1H3,(H,15,16)/b3-2+,5-4+,11-6-/f/h15H 0CD428D679DCBA50