“Efficient Synthesis of Novel 1-Substituted β- Carboline Derivatives via Pictet-Spengler Cyclization of 5-Hydroxy-L-Tryptophan”. Malaysian Journal of Fundamental and Applied Sciences 18, no. 2 (May 16, 2022): 218–226. Accessed September 5, 2026. https://mjfas.utm.my/index.php/mjfas/article/view/2331.