InChI=1S/C16H21NO9/c17-12-7(8(19)4-5-11(20)21)2-1-3-9(12)25-16-15(24)14(23)13(22)10(6-18)26-16/h1-3,10,13-16,18,22-24H,4-6,17H2,(H,20,21)/t10-,13-,14+,15-,16-/m1/s1