InChI=1S/C20H28O5/c1-13-6-9-17(22)14(2)7-8-16(15(3)21)18(12-13)25-19(23)10-11-20(4,5)24/h10-12,16,18,24H,2,6-9H2,1,3-5H3/b11-10+,13-12+/t16-,18-/m0/s1