InChI=1S/C16H15NO11/c18-4-1-5-7(19)3-6(14(23)24)17-9(5)8(2-4)27-16-12(22)10(20)11(21)13(28-16)15(25)26/h1-3,10-13,16,18,20-22H,(H,17,19)(H,23,24)(H,25,26)