InChI=1/C20H21NO/c1-12-10-20(2,3)21-19-8-14-7-17-13(11-22)5-4-6-15(17)18(14)9-16(12)19/h4-6,8-10,21-22H,7,11H2,1-3H3 7B81484F8DA9345B