InChI=1S/C16H22O6/c17-13-10-16(21,15(19)20)9-11(14(13)18)5-4-8-22-12-6-2-1-3-7-12/h1-3,6-7,11,13-14,17-18,21H,4-5,8-10H2,(H,19,20)/t11-,13+,14+,16-/m0/s1