The synthesis of heterocycles is an emerging area of chemical research considering their
high importance in pharmaceuticals, material chemistry, and natural product synthesis. The …

Background: Cancer is one of the major causes of human mortality worldwide. A number of
existing antineoplastic medications and treatment regimens are already working in the field …

A wide range of biologically active compounds contain the quinazoline ring system. A new
free-radical-based method of making functionalized quinazolines is described, which relies …

Five hydroxyanthraquinone compounds were purified from Chinese medicinal herb rhubarb
by microwave-assisted extraction and silica gel column isolation. Their structures were …

A catalyst- and solvent-free selective approach to biologically important quinazolines and
benzo[g]quinazoline - ScienceDirect Skip to main contentSkip to article Elsevier logo Journals …

In this work, fifteen new substituted quinazoline analogs were synthesized in good yields
through the reaction of 7-(2-chloroethoxy)-6-methoxy-N-arylquinazoline-4-amine and …

Various benzotriazepine ring systems have been synthesized and examined for biological
activity. Moreover, the 1, 3, 4-benzotriazepin-2-one has been shown to act as a constrained …

This study demonstrated the synthesis of a number of pyrazolo [1, 5-a] quinazoline
derivatives about 24 products based on the starting material 4-(2-phenylhydrazono)-4H …

Despite the fact that COVID-19 vaccines are already available on the market, there have not
been any effective FDA-approved drugs to treat this disease. There are several already …

A novel and efficient copper-catalyzed cascade method for the synthesis of quinazoline
derivatives has been developed. The protocol uses readily available substituted (2 …