InChI=1S/C21H23ClN2O9/c1-24(2)13-6-3-5-9(18(30)21(6,33)19(31)12(17(13)29)20(23)32)16(28)11-10(14(5)26)7(22)4-8(25)15(11)27/h4-6,12-14,17,25-27,29-30,33H,3H2,1-2H3,(H2,23,32)/t5?,6?,12?,13?,14?,17?,21-/m0/s1