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