InChI=1S/C15H17NO8/c1-22-8-5-7-6(2-3-16-7)4-9(8)23-15-12(19)10(17)11(18)13(24-15)14(20)21/h2-5,10-13,15-19H,1H3,(H,20,21)/t10-,11-,12+,13-,15+/m0/s1