InChI=1S/C15H22O4/c1-8-4-5-12(16)9(2)6-14-11(7-13(8)17)10(3)15(18)19-14/h6,10-14,16-17H,1,4-5,7H2,2-3H3/b9-6+/t10-,11-,12-,13-,14-/m0/s1