InChI=1S/C15H22O5/c1-8-3-10(18)14(6-16)11(4-8)20-12-9(17)5-13(14,2)15(12)7-19-15/h4,9-12,16-18H,3,5-7H2,1-2H3/t9-,10-,11-,12?,13-,14+,15?/m1/s1