InChI=1S/C21H22ClNO8/c1-19(29)8-6-11-20(30,12(25)7-13(26)21(11,31)23(2)3)18(28)14(8)17(27)15-10(24)5-4-9(22)16(15)19/h4-5,8,11,14,24,29-31H,6-7H2,1-3H3/t8?,11?,14?,19-,20+,21?/m0/s1