Abstract
This review covers recent developments in the area of partially reduced 2-benzazepines, particularly synthesis and their main applications. The first chapter discusses the principal routes (ring-closure methods with formation of C-N or C-C bonds as well as ring expansion methods) to obtain these heterocycles. The second chapter covers total syntheses of the alkaloids galanthamine, lycoramine, narwedine and clavicipitic acid which all contain the 2-benzazepine core structure. At the end of the chapter, approaches to the homoberbine and ribasine skeleton are given. Additional information is provided for synthesis of medicinally important 8,9-dichloro-2,3,4,5-tetrahydro- 1H-2-benzazepine.
Keywords: 2- Benzazepines, alkaloids galanthamine, Tetrahydrobenzazepines, acetylcholinesterase, intramolecular nucleophilic substitution, Friedel-Crafts intramolecular acylation, Pictet-Spengler, antiaggregatory, photochemical cyclisation, Clavicipitic acids
Call for Papers in Thematic Issues
Catalytic C-H bond activation as a tool for functionalization of heterocycles
The major topic is the functionalization of heterocycles through catalyzed C-H bond activation. The strategies based on C-H activation not only provide straightforward formation of C-C or C-X bonds but, more importantly, allow for the avoidance of pre-functionalization of one or two of the cross-coupling partners. The beneficial impact of ...read more
Chemistry and Biology of Carbohydrates
Carbohydrates are one of the most abundant natural products and are considered to be extremely important biomolecules for their ever-increasing impact on chemistry and biology. Their role in several important biological processes, notably energy storage, transport, modulation of protein function, intercellular adhesion, malignant transformation, signal transduction, viral, and bacterial cell ...read more
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