InChI=1S/C21H22ClNO8/c1-19(29)14-9(22)4-5-10(24)13(14)17(27)15-18(28)21(31)8(7-20(15,19)30)16(23(2)3)11(25)6-12(21)26/h4-5,8,15-16,24,29-31H,6-7H2,1-3H3/t8?,15?,16?,19-,20?,21-/m1/s1