InChI=1S/C18H22ClNO6/c1-24-10-6-12(22)18(14(10)23)11(19)8-17-15(26-3)13(25-2)9(21)7-16(17,18)4-5-20-17/h6,11,14,20,23H,4-5,7-8H2,1-3H3/t11-,14-,16+,17+,18+/m0/s1