InChI=1S/C15H28O4/c1-9-6-12(17)13-11(9)7-10(15(3,19)8-16)4-5-14(13,2)18/h9-13,16-19H,4-8H2,1-3H3/t9-,10+,11-,12-,13-,14+,15-/m0/s1