InChI=1S/C20H22ClNO7/c1-9-12(22-13-5-3-2-4-11(13)19(26)27)7-6-10(15(9)21)8-14-16(23)17(24)18(25)20(28)29-14/h2-7,14,16-18,20,22-25,28H,8H2,1H3,(H,26,27)