InChI=1/C21H22N2/c1-3-23(4-2)21-16-19(17-11-7-5-8-12-17)15-20(22-21)18-13-9-6-10-14-18/h5-16H,3-4H2,1-2H3/p+1/fC21H23N2/h22H/q+1 70585002DB5DDBCF