Approach to the synthesis of new analogue of sildenafil towards palladium-catalyzed 3-methylsulfanyl-1,2,4-triazine - boronic acid cross coupling. arjournals [Internet]. 2014 Mar. 25 [cited 2026 Feb. 2];5(2):12-6. Available from: https://arjournals.com/index.php/arj/article/view/27