Fig. 2

General schematic for the synthesis of compounds of 4a-4l. Reagents and conditions: (i). Diisopropylethylamine (DIPEA), 40 ºC, 10 min; (ii) K2CO3, Azole moiety, TEA, Acetonitrile, 75 ºC, 24 h
General schematic for the synthesis of compounds of 4a-4l. Reagents and conditions: (i). Diisopropylethylamine (DIPEA), 40 ºC, 10 min; (ii) K2CO3, Azole moiety, TEA, Acetonitrile, 75 ºC, 24 h