“…The NMR spectra were consistent with the previously reported data. Melting point: 74~76 °C; 1 H-NMR (500 MHz, CDCl3) δ 8.59 (s, 2H), 4.46 (q, 2H, J = 7.1 Hz), 2.63 (s, 3H), 1.43 (t, 3H, J = 7.1 Hz); 13 Recently, we have intensively worked on the synthesis and biological applications of pyridine-fused privileged scaffolds, such as quinoline and pyridocoumarin, using Ag(I)catalyzed cycloisomerization [8][9][10]. Taking advantage of its high yield and regioselectivity, Ag(I)-catalyzed cycloisomerization has also been used for the synthesis of natural products, including goniothalines [8] and polynemoraline C [10].…”