Pyrazolo [3, 4-b] pyridines are a group of heterocyclic compounds presenting two possible
tautomeric forms: the 1 H-and 2 H-isomers. More than 300,000 1 H-pyrazolo [3, 4-b] …

In recent years, the fundamental variety and biological influence of pyridine and its
derivatives make them fascinating aims for preparation. These versatile compounds can be …

The exchange of the metal ion from Ni (II) to In (I) leads to a switch in the chemoselectivity of
the [3+ 3] annulation of β, γ-unsaturated α-ketoesters and 1 H-pyrazol-5-amines in the …

The pyrazolo-azepino-centred polyheterocyclic fused system is a privileged scaffold, but it
lacks an effective synthetic approach, with modular synthesis being even more scarce …

This review provides a detailed survey of the present literature data on β-alkoxyvinyl-and β-
enaminocarbonyl compounds as CCC bis-electrophiles in reactions with the common NCN …

The synthesis of a novel imidazo [4, 5-b] pyridine and its partially saturated derivative relied
on Michael addition of 1-methyl-1H-imidazol-4-amine to fumaric/maleic or acetylene …

Isoxazolopyridines are highly significant for the development of pharmaceuticals and new
materials. In continuation of our ongoing research on transformations of 5‐aminoisoxazoles …

An efficient approach has been developed for the trapping in situ generated benzopyrone‐
based ortho‐quinone methide intermediates by 3‐and 5‐amino pyrazoles or isoxazoles. In …

Доступність ізоксазоло [5, 4-b] піридинів, які легко одержуються з 5-аміноізоксазолів
реакціями Комба і Дебнера, а також їх різноманітна біоактивність робить цей клас …