10.1016/j.bmcl.2009.03.130
The study focuses on the synthesis and biological activity of a low molecular weight non-peptidic mimic of the analgesic peptide x-conotoxin GVIA, which is a calcium channel (Cav2.2) blocker with potential applications in pain management. The researchers aimed to develop a compound with improved oral bioavailability and blood-brain barrier permeability by reducing its molecular weight. Key chemicals used in the study include 2-aminobenzothiazole, various acids, amines, and protecting groups like phthalimide and BOC. These chemicals were employed in the synthesis of several 'truncated' analogues of the lead compound 1b, which were designed to mimic specific amino acid residues of x-conotoxin GVIA. The purpose of these chemicals was to create a series of compounds with varying structures to evaluate their effectiveness in inhibiting N-type calcium channels, with the goal of identifying a lead compound that is both biologically active and more suitable for drug development due to its lower molecular weight and simplified synthesis process.
10.1002/jhet.1572
This research study on the synthesis and mechanistic investigation of triheterocyclic 4H-pyrimido[2,1-b]benzothiazole derivatives through a one-pot, three-component reaction under solvent-free conditions. The purpose of the study was to develop an efficient method for the preparation of these derivatives, which have attracted interest due to their potential biological activities and pharmaceutical applications. The reaction involves the condensation of aldehydes, β-ketoesters, and 2-amino benzothiazole, using various catalysts to achieve good yields at 60–65°C. The study concluded that the method is rapid, environmentally benign, and offers a useful platform for the development of novel molecular scaffolds in molecular designing, with different mechanistic pathways observed for metal catalysts and acetic acid.
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