“…Mp 74-76 uC (pale yellow solid) [lit. 24 mp 71-72 uC] 1 H NMR (300 MHz, CDCl 3 ) d 3.93 (s, 3H), 6.61 (m, 1H), 7.38 (m, 1H), 7.66 (d, 1H, J = 8.3 Hz), 7.82 (dd, 1H, J 1 = 8.5 Hz, J 2 = 1.5 Hz), 8.17 (m, 1H), 8.45 (brs, 1H). MS (EI), m/z (relative int.…”