Ethyl L-Pyroglutamate TCI P2929

Ethyl L-Pyroglutamate (TCI P2929) is the ethyl ester of L-pyroglutamic acid. L-pyroglutamic acid is a cyclic derivative of L-glutamic acid in which the amine group and the side-chain carboxyl group close into a five-membered lactam ring, a 2-pyrrolidinone. In the laboratory, this compound serves as a chiral building block from the chiral pool, meaning an optically pure material derived from a natural amino acid. It is widely used in peptide chemistry and in the synthesis of pyrrolidine derivatives that require a specific stereochemical configuration.

The main advantage of this compound is its chiral centre, which comes from a natural amino acid with the L-configuration. Researchers can therefore build chiral molecules without complex resolution steps or asymmetric catalysis. The lactam ring is fairly stable, yet the lactam carbonyl and the amide nitrogen can be modified selectively, for example through reduction, N-alkylation, or N-acylation. The ethyl ester group converts easily into an alcohol, an amide, or the free acid. Together, these features open synthetic routes to prolinol, proline derivatives, and a wide range of pyrrolidine alkaloids.

In Indonesia, this material is useful for synthetic organic chemistry, medicinal chemistry, and peptide chemistry laboratories at universities, research institutes, and industrial R&D facilities. Research groups working on chiral intermediates, modified amino acids, or nitrogen-containing heterocycles can use it as a dependable starting material for multi-step synthesis. It also suits teaching laboratories and postgraduate projects that show how stereochemistry from natural sources can be carried through a synthetic sequence while the product stays optically pure.

• Chiral pool synthesis: as an optically pure starting material from a natural L-amino acid, it lets chemists add a defined stereocentre without resolution or asymmetric catalysis.
• Peptide chemistry: the pyroglutamate lactam structure makes it relevant for preparing modified amino acid residues and peptide-related building blocks used in peptide chemistry research.
• Synthesis of prolinol and proline derivatives: reducing the lactam and transforming the ester give practical access to prolinol, proline analogues, and related chiral pyrrolidine scaffolds.
• Pyrrolidine alkaloid synthesis: the five-membered lactam ring with fixed L-configuration provides a suitable core for building natural-product-like pyrrolidine alkaloids in multi-step research routes.
• Medicinal chemistry intermediate preparation: selective N-alkylation, N-acylation, and ester conversion to amides or acids let researchers create varied chiral pyrrolidinone derivatives for structure–activity studies.

Store Ethyl L-Pyroglutamate in its original, tightly closed manufacturer container. Keep it in a cool, dry, well-ventilated place away from direct sunlight, heat sources, moisture, and incompatible materials such as strong oxidising agents, strong acids, and strong bases. Ester compounds can slowly hydrolyse when exposed to moisture, so reseal the container promptly after each use. Handle the material in a fume hood or a well-ventilated area, and wear standard personal protective equipment: safety glasses, chemical-resistant gloves, and a laboratory coat. Avoid inhalation, ingestion, and contact with skin or eyes. Always read the TCI Safety Data Sheet before use, and dispose of waste according to local regulations and your institution's procedures.

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