InChI=1/C18H22N2O3/c21-16(19-11-5-1-2-6-12-19)10-7-13-20-17(22)14-8-3-4-9-15(14)18(20)23/h3-4,8-9H,1-2,5-7,10-13H2 1FB6C5AD7C55FDF6