InChI=1S/C16H17N2/c1-10-6-13-12-4-3-5-14-16(12)11(8-17-14)7-15(13)18(2)9-10/h3-6,8-9,13,15,17H,7H2,1-2H3/q+1/t13-,15-/m1/s1