InChI=1/C21H26ClNO4/c1-20(2,27-16-5-3-15(22)4-6-16)18(24)23-17-13-7-12-8-14(17)11-21(9-12,10-13)19(25)26/h3-6,12-14,17H,7-11H2,1-2H3,(H,23,24)(H,25,26)/p-1/t12?,13-,14+,17?,21?/fC21H25ClNO4/h23H/q-1 36AE1366C6BA0CE4