InChI=1/C19H19NO2/c1-12-13(2)19(20-16-8-6-5-7-15(12)16)14-9-10-17(21-3)18(11-14)22-4/h5-11H,1-4H3/p+1/fC19H20NO2/h20H/q+1 A479A4BE37BB31ED