InChI=1S/C14H22O4/c1-8-6-12(3)10-9(2)11(15)17-14(5,16-10)13(4,7-8)18-12/h8-10H,6-7H2,1-5H3/t8-,9+,10-,12-,13+,14+/m0/s1