InChI=1S/C21H29NO/c23-21(16-7-3-1-4-8-16,9-12-22-10-5-2-6-11-22)20-15-13-17-18(14-15)19(17)20/h1,3-4,7-8,15,17-20,23H,2,5-6,9-14H2