InChI=1S/C21H21ClN2O9/c1-24(2)14-6-3-5-9(18(30)21(6,33)19(31)12(17(14)29)20(23)32)16(28)10-7(25)4-8(26)13(22)11(10)15(5)27/h4-6,12,14-15,25-27,30,33H,3H2,1-2H3,(H2,23,32)/t5?,6?,12?,14?,15?,21-/m0/s1