InChI=1S/C18H34O5/c1-2-3-7-10-15(19)13-14-17(21)16(20)11-8-5-4-6-9-12-18(22)23/h13-17,19-21H,2-12H2,1H3,(H,22,23)/b14-13+/t15-,16-,17+/m0/s1