InChI=1S/C18H28O6/c1-2-3-4-7-13(19)10-11-16-14(8-5-6-9-17(21)22)15(20)12-18(23)24-16/h5-6,10-11,13-14,16,18-19,23H,2-4,7-9,12H2,1H3,(H,21,22)/b6-5-,11-10+