InChI=1S/C20H20ClNO8/c1-22(2)17-10(24)5-11(25)20(30)18(28)12-7(6-19(17,20)29)15(26)13-8(21)3-4-9(23)14(13)16(12)27/h3-4,7,12,15,17,23,26,29-30H,5-6H2,1-2H3/t7?,12?,15?,17?,19?,20-/m1/s1