InChI=1/C18H22N2O2/c21-20(22)17-3-1-13(2-4-17)11-19-12-18-8-14-5-15(9-18)7-16(6-14)10-18/h1-4,11,14-16H,5-10,12H2/p+1/fC18H23N2O2/h19H/q+1 87D30F6818802A43