InChI=1S/C17H27Cl4NO/c1-14(23)22-15(10-6-2-4-8-12-16(18)19)11-7-3-5-9-13-17(20)21/h15-17H,2-4,6-8,10-13H2,1H3,(H,22,23)/t15-/m0/s1