InChI=1S/C16H24O5/c1-14(2)6-10(18)8-5-9(17)12(19)16(13(8)21-14)7-11(16)15(3,4)20/h9,11-12,17,19-20H,5-7H2,1-4H3/t9-,11-,12-,16+/m0/s1