InChI=1/C15H20O5/c1-15(2,9-14(17)18)8-11(16)10-3-4-12-13(7-10)20-6-5-19-12/h3-4,7,11,16H,5-6,8-9H2,1-2H3,(H,17,18)/p-1/t11-/m0/s1/fC15H19O5/q-1 4A32DF1CEE9D5848