Fmoc-L-Pen(Trt)-OH CAS 201531-88-6

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Fmoc-L-Pen (Trt) - OH is a key building block with high professional value in complex peptide synthesis. Its molecular structure has been carefully designed, and two protective groups, Fmoc (fluorenylmethoxycarbonyl) and Trt (triphenylmethyl), have been introduced. This characteristic makes it an important intermediate for the preparation of high-end peptide drugs, including Johnson&Johnson IL-23 receptor oral cyclic peptide inhibitors.
The core function of Fmoc-L-Pen (Trt) - OH lies in its controllable protection strategy for amino acid functional groups. Its α - amino group is protected by Fmoc groups through the formation of amino ester bonds, which exhibit excellent stability and can withstand acidic environments and oxidative conditions, ensuring the integrity of the molecular structure in complex reaction systems synthesized in multiple steps. At the same time, its side chain thiol groups are protected by Trt groups. This orthogonal protection scheme allows chemists to selectively remove specific protecting groups through differentiated conditions (such as acid treatment), providing precise molecular manipulation for subsequent directional coupling and cyclization reactions.
Based on this excellent chemical controllability, the application of Fmoc-L-Pen (Trt) - OH goes beyond the scope of ordinary peptide synthesis. In the development of cutting-edge therapies such as IL-23R oral cyclic peptide, the L-penicillamine structural unit it provides is crucial for constructing cyclic peptide molecules with specific three-dimensional conformation and high biological activity. Its stable protective properties ensure the reliability of molecules in lengthy solid-phase synthesis sequences, ultimately laying the foundation for obtaining innovative drugs with ideal oral bioavailability and targeting.

 

 

 

    

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