InChI=1S/C21H25ClO7/c22-16-6-3-13(21-20(27)19(26)18(25)17(11-24)29-21)10-14(16)9-12-1-4-15(5-2-12)28-8-7-23/h1-6,10,17-21,23-27H,7-9,11H2/t17-,18-,19+,20-,21+/m1/s1