InChI=1S/C21H22ClNO8/c1-20(30)13-7(22)4-5-8(24)11(13)17(27)12-14(20)18(28)15-16(23(2)3)9(25)6-10(26)21(15,31)19(12)29/h4-5,12,14-16,18,24,28,30-31H,6H2,1-3H3/t12?,14?,15?,16?,18?,20-,21+/m1/s1