InChI=1/C22H32O5/c1-18-11-5-2-8-14-20(24)17-21(25)15-9-3-6-12-19(23)13-7-4-10-16-22(26)27-18/h3-4,6-10,12,14,16,18-21,23-25H,2,5,11,13,15,17H2,1H3/b7-4+,9-3+,12-6-,14-8+,16-10-/t18-,19-,20-,21-/s2