Synthetic Strategies and Biological Activities of Pyrazolo[4,3-e]pyrrolo[1,2- a]pyrazines and Related Tricyclic Systems: A Comprehensive Literature Review.
Nitrogen-containing heterocyclic compounds with multiple fused rings have gained significant interest in medicinal chemistry due to their structural versatility and wide range of pharmacological applications. Within this category, pyrazolopyrrolopyrazines stand out as scaffolds featuring a tricyclic fused core composed...