“…Hz, 1 H), 7.57 (s, 1 H), 7.29 (d, J = 8.3 Hz, 1 H), 4.40 (q, J = 7.2 Hz, 2 H), 4.32 (q, J = 7.1 Hz, 2 H), 1.35 (m, 6 H); 13 C NMR (100 MHz, CDCl 3 ) δ 166.4, 164.0, 151.2, 149.8, 139.5, 137.8, 129.9, 127.2, 122.1, 62.1, 61.7, 14.3, 14.2; HRMS (EI) calcd for C 13 H 15 BrNO 4 328.0184, found 328.0186. Dimethyl 2-[(5-Bromopyridin-2-yl)methylene]malonate(25). The product was isolated as a white solid: mp 96−99 °C;1 H NMR (400 MHz, CDCl 3 ) δ 8.66 (s, 1 H), 7.86 (dd, J = 8.2, 2.3 Hz, 1 H), 7.61 (s, 1 H), 7.29 (d, J = 8.3 Hz, 1 H), 3.90 (s, 3 H), 3.86 (s, 3 H); 13 C NMR (100 MHz, CDCl 3 ) δ 166.9, 164.3, 151.4, 149.5, 139.6, 138.6, 129.0, 127.4, 122.3, 53.1, 52.8; HRMS (EI) calcd for [M + H] + (M = C 11 H 10 BrNO 4 ) 299.9866, found 299.9870.…”