InChI=1S/C17H22O5/c1-9-7-14-12(10(2)16(19)21-14)5-6-17(4)15(22-17)8-13(9)20-11(3)18/h7,12-15H,2,5-6,8H2,1,3-4H3/b9-7-/t12-,13-,14-,15+,17+/m0/s1