InChI=1/C18H20N2O/c1-3-11-16(21)7-8-18(4-2)9-13-12(17(11)18)5-6-15-14(13)10-19-20-15/h5-6,10H,3-4,7-9H2,1-2H3,(H,19,20)/t18-/m0/s1/f/h19H	F683477F0C312384