InChI=1S/C15H28O5/c1-10-4-7-15(20)13(3,18)6-5-11(8-14(10,15)19)12(2,17)9-16/h10-11,16-20H,4-9H2,1-3H3/t10-,11+,12+,13+,14+,15+/m0/s1