InChI=1S/C22H41NO7/c1-2-3-4-5-6-7-8-9-10-11-12-13-20(26)30-22-17(14-19(25)23-28)16-29-18(15-24)21(22)27/h17-18,21-22,24,27-28H,2-16H2,1H3,(H,23,25)/t17-,18+,21+,22+/m0/s1