InChI=1S/C21H22ClNO8/c1-20(30)7-6-8-14(23(2)3)16(26)17(27)19(29)21(8,31)18(28)11(7)15(25)12-10(24)5-4-9(22)13(12)20/h4-5,7-8,11,14,17,24,27,30-31H,6H2,1-3H3/t7?,8?,11?,14?,17?,20-,21-/m0/s1