“…mp: 142.6-143.5 • C. 1 H NMR (CDCl 3 ): δ(ppm): δ 8.53 (dd, 3 J HH 4.8, 4 J HH 1.9 Hz, 1H, para to pyridine N), 8.48 (dd, 3 J HH 7.9, 4 J HH 1.9 Hz, 1H, ortho to pyridine N), 7.63 (s, 1H, Ar), 7.47-7.37 (m, 4H, Ar), 7.34 (d, 3 J HH 9.0 Hz, 3H, Ar), 7.24 (dd, 3 J HH 7.9, 4.8 Hz, 1H, meta to pyridine N), 7.18 (t, 3 J HH 7.9 Hz, 1H, Ar), 6.12 (s, 1H, C2-H). 13…”