InChI=1S/C24H46O3/c1-2-3-4-14-17-20-23(25)21-18-15-12-10-8-6-5-7-9-11-13-16-19-22-24(26)27/h18,21,23,25H,2-17,19-20,22H2,1H3,(H,26,27)/b21-18-