InChI=1/C16H18N2O/c1-11(2)12-3-5-13(6-4-12)14-7-9-15(10-8-14)18-16(17)19/h3-11H,1-2H3,(H3,17,18,19)/f/h18H,17H2 767A21A81B7AE6DD