InChI=1S/C20H24ClNO8/c1-9-11(7-8-13(28-2)14(9)21)22-12-6-4-3-5-10(12)18(26)29-20-17(25)15(23)16(24)19(27)30-20/h3-8,15-20,22-27H,1-2H3