InChI=1S/C20H26O5/c1-12-15(21)9-20-11-25-18(23)14(20)4-3-5-16(20)19(12,2)7-6-13-8-17(22)24-10-13/h4,12-13,16H,3,5-11H2,1-2H3/t12-,13+,16+,19-,20+/m0/s1