InChI=1/C19H24N2O2/c1-6-18(4)19(5)14-8-7-11(2)16-15(14)13(12(3)20-16)9-10-21(19)17(22)23-18/h7-8,16H,6,9-10H2,1-5H3/t16-,18+,19+/m1/s1 BEFDED98E63338EB