Design and Efficient Synthesis of New 4-Amino-Substituted 2-(4-Bromobenzyl)-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidines of Anticancer Interest and Their In Silico Study

Abstract

Thienopyrimidines are one of the emerging classes among fused pyrimidines owing to their broad spectrum of pharmacological properties, including antimicrobial, anti-inflammatory, antimalarial, anticancer, etc. The anticancer activity of these compounds is mechanistically proven via the inhibition of validated drug targets such as EGFR, VEGFR-2, PI3K, and c-kit. In this research article, we designed and attempted synthesis of new 4-amino substituted 2-(4-bromobenzyl)-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidines to explore their anticancer potential further. These heterocycles were designed based on pharmacophoric features of the core heterocycle, varying its C-4 substitution with a variety of amines and considering cancer protein-ligand interactions aiming to get potent lead molecules. The target compound-protein interaction complexes were analyzed, and lead compounds were identified based on their better binding affinity in molecular docking studies.