InChI=1S/C14H16O5/c15-12(14(18)19)10-8-6-4-2-1-3-5-7-9-11-13(16)17/h1-9,11-12,15H,10H2,(H,16,17)(H,18,19)/b3-1+,4-2-,7-5+,8-6+,11-9-