InChI=1S/C16H17NO11/c18-5-1-2-7-6(3-5)16(26,15(25)17-7)4-8(19)27-14-11(22)9(20)10(21)12(28-14)13(23)24/h1-3,9-12,14,18,20-22,26H,4H2,(H,17,25)(H,23,24)