InChI=1S/C20H32O5/c1-13(12-17(21)22)6-7-16-15(19(3,4)25)9-11-20(16,5)10-8-14(2)18(23)24/h8,12,15-16,25H,6-7,9-11H2,1-5H3,(H,21,22)(H,23,24)/b13-12+,14-8+/t15-,16+,20+/m0/s1