InChI=1/C19H24N2O2/c22-21(23)18-5-3-14(4-6-18)12-20-13-19-9-15-1-2-16(10-19)8-17(7-15)11-19/h3-6,12,15-17H,1-2,7-11,13H2/p+1/t15-,16+,17?,19?/fC19H25N2O2/h20H/q+1 9ECDE285B042DDDF