InChI=1S/C21H26ClNO7/c1-20(29)8-6-9-17(23(2)3)12(25)7-13(26)21(9,30)19(28)14(8)18(27)15-11(24)5-4-10(22)16(15)20/h4-5,8-9,12,14,17-18,24-25,27,29-30H,6-7H2,1-3H3/t8?,9?,12?,14?,17?,18?,20-,21+/m0/s1