InChI=1S/C17H24O5/c1-12(11-22-13(2)18)5-4-10-17(3,21)15-8-6-14(7-9-15)16(19)20/h6-9,12,21H,4-5,10-11H2,1-3H3,(H,19,20)/t12-,17+/m0/s1