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1 results about "Terfenadine" patented technology

Terfenadine is an antihistamine formerly used for the treatment of allergic conditions. It was brought to market by Hoechst Marion Roussel (now Sanofi-Aventis) and was marketed under various brand names, including Seldane in the United States, Triludan in the United Kingdom, and Teldane in Australia. It was superseded by fexofenadine in the 1990s due to the risk of a particular type of disruption of the electrical rhythms of the heart (specifically cardiac arrhythmia caused by QT interval prolongation) and has been withdrawn from markets worldwide.

Process for the preparation of desipramine

This invention relates to the field of peptide preparation technology, specifically to a preparation process for terfenadine. The terfenadine preparation process includes the following steps: (1) using resin as a solid-phase carrier, Boc-Pip(Fmoc)-OH is loaded onto the resin to obtain Boc-Pip(Fmoc)-resin; (2) under the action of a condensing agent, Fmoc-D-Lys(Boc)-OH and Boc-D-Phe-D-Phe-D-Leu-OH are sequentially coupled onto the Boc-Pip(Fmoc)-resin to obtain terfenadine peptide resin; (3) the terfenadine peptide resin is lysed using a lysis buffer, then concentrated, precipitated, and dried to obtain crude terfenadine. This invention's preparation process can effectively improve product purity while ensuring large-scale industrial production, and the steps are simple with a short reaction cycle.
Owner:CHENGDU SINTANOVO BIOTECHNOLOGY CO LTD