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