InChI=1S/C21H23NO8/c1-7-9-4-8(23)5-10(24)14(9)18(27)15-13(7)19(28)16-17(22(2)3)11(25)6-12(26)21(16,30)20(15)29/h4-5,7,13,16-17,19,23-24,28-30H,6H2,1-3H3/t7?,13?,16?,17?,19?,21-/m0/s1