InChI=1S/C22H19ClO10/c1-6-9-16(10(20(27)28)12(24)11(6)23)31-15-7(2)8(13(25)19-22(3,4)33-19)17(30-5)14(26)18(15)32-21(9)29/h19,24,26H,1-5H3,(H,27,28)