InChI=1S/C21H26ClNO8/c1-19(29)12-6-8-16(23(2)3)11(25)7-13(26)20(8,30)18(28)21(12,31)17(27)14-10(24)5-4-9(22)15(14)19/h4-5,8,11-12,16,18,24-25,28-31H,6-7H2,1-3H3/t8?,11?,12?,16?,18?,19-,20+,21?/m0/s1