1. INTRODUCTION Bicyclic oxygen heterocycles resulting from fusion of benzene ring with
5, 6-positions of either 2H-or 4H-pyran ring system are designated as 2H-chromene (2H-1 …

Atovaquone belongs to a naphthoquinone class of drugs and is used in combination with
proguanil (Malarone) for the treatment of acute, uncomplicated malaria caused by …

A simple, straightforward, and highly efficient multicomponent one-pot synthesis of a
pharmaceutically interesting diverse kind of functionalized 2-amino-3-cyano-4 H-pyrans and …

We have reported DBU catalyzed one-pot synthesis of 3, 4-dihydropyrano [3, 2-c]
chromenes, dihydropyrano [4, 3-b] pyranes, 2-amino-4H-benzo [h] chromenes and 2-amino …

Abstract 4H-Pyrans and 4H-pyran-annulated heterocyclic scaffolds represent a “privileged”
structural motif well-distributed in biologically active natural products and also in promising …

An efficient and green protocol for the synthesis of dihydropyrano [2, 3-c] chromene
derivatives by one-pot, three component coupling reaction of aromatic aldehyde …

While alkyl halides are valuable intermediates in synthetic organic chemistry, their use as
bioactive motifs in drug discovery and medicinal chemistry is rare in comparison. This is …

A novel and efficient method has been developed for the synthesis of highly functionalized
benzo [g]-and dihydropyrano [2, 3-g] chromene derivatives via addition and subsequently …

Catalyst/HypoGen pharmacophore modeling approach and three-dimensional quantitative
structure− activity relationship (3D-QSAR)/comparative molecular similarity indices analysis …

A simple, straightforward, and highly efficient multicomponent one‐pot synthesis of
pharmaceutically interesting diverse functionalized O‐and N‐heterocyclic scaffolds, such as …