InChI=1S/C23H38N2O/c1-2-3-20-25(26)21-15-13-11-9-7-5-4-6-8-10-12-14-17-23-18-16-19-24-22-23/h15-16,18-22H,2-14,17H2,1H3/b21-15+,25-20-