InChI=1/C19H42N2O2/c1-7-18(22,8-2)16-20(11-5)14-13-15-21(12-6)17-19(23,9-3)10-4/h22-23H,7-17H2,1-6H3/p+1/fC19H43N2O2/h20H/q+1 227542D0E7CBEF3F