Solid-phase Synthesis of Tetrapeptide on 2-Chlorotrityl Chloride Resin by Using Benzotriazol-1-yl-oxytripyrrolidinophosphonium Hexafluorophosphate as Coupling Reagent. Valensi [Internet]. 2016 Dec. 1 [cited 2026 Jun. 2];2(2):85-90. Available from: https://journal.uinjkt.ac.id/valensi/article/view/4055