Functionalized pyridines and their benzo/hetero-fused analogues represent an important class of organic molecules for their presence in numerous natural products along with useful bio-, physio- and pharmacological activities. [1] [2] The synthesis of the pyridine derivatives can principally be realized either by modification of the pre-constructed pyridine nucleus or through the construction of the pyridine ring from appropriately substituted open chain precursor, which have been ...
