“…In light of this, synthesis of compounds that are close analogs of natural compounds is an important task for the synthetic organic chemistry, and this approach has already provided successful results in the view of reaching biological activity. Thus, angular pyrrolo [1,2-a]quinazolines of type 1 -analogs of naturally occurring vasicinone alkaloids bearing an isomeric linear pyrrolo [2,1-b]quinazoline core [5][6][7][8] -demonstrated anti-inflammatory [9], antibacterial [10], antiarrythmic [11] activity; some representatives are CNS suppressors and poly-ADP ribose polymerase (PARP) inhibitors [12] (see Figure 1). Several approaches to obtain 2,3-dihydropyrrolo[1,2-a]quinazolin-5(1H)-one derivatives of type 1 are known in the litera- ture to date.…”