InChI=1S/C15H22O5/c1-10(9-16)4-3-7-15(2,20)12-6-5-11(14(18)19)8-13(12)17/h5-6,8,10,16-17,20H,3-4,7,9H2,1-2H3,(H,18,19)/t10-,15+/m0/s1