InChI=1S/C23H29NO3/c25-23(24-16-10-7-11-17-24)13-9-6-4-2-1-3-5-8-12-20-14-15-21-22(18-20)27-19-26-21/h4,6,8-9,12-15,18H,1-3,5,7,10-11,16-17,19H2/b6-4+,12-8+,13-9+