InChI=1S/C25H38O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-20-23-24(26)21-19-22-25(23)27/h14-22,26-27H,2-13H2,1H3/b15-14+,17-16+,20-18+