InChI=1S/C23H23ClO5/c1-6-12(2)9-13(3)7-8-15-10-16-17(11-28-15)19-18(14(4)25)22(27)29-23(19,5)21(26)20(16)24/h7-12H,6H2,1-5H3/b8-7+,13-9+/t12-,23+/m0/s1