Viwit Pharmaceutical

Chiral synthetic ligands/intermediates: Their primary applications are in asymmetric hydroboration, asymmetric reduction, and the preparation of chiral catalysts; they are key chiral building blocks in the synthesis of anticancer drugs such as bortezomib. Organic synthetic reagents: Used to prepare chiral borate esters and chiral alcohols, improving reaction stereoselectivity. Pharmaceutical impurity reference standards: Used as impurity 38 in bortezomib for drug quality control and analytical method validation.