“SYNTHESIS OF 5 H-IMIDAZO [1, 2-a] THIOPYRAN0-[4’, 3’: 4, 5] THIEN0[2, 3-d] PYRIM1DIN-5-0NE” (2001) Biological Sciences - PJSIR, 44(2), pp. 63–66. Available at: https://www.v2.pjsir.org/index.php/biological-sciences/article/view/1877 (Accessed: 10 March 2026).