N-(1-(2,4-dimethoxyphenyl)-2-S-tritylmercapto)ethylglycine is a modified glycine derivative featuring an ethylglycine backbone substituted at the amino-bearing carbon by a 2,4-dimethoxyphenyl group and a thioether side chain bearing a trityl-protected thiol equivalent. The molecule contains a free carboxyl functional group and an N-substituted amino functionality (amide-like N-alkylation), while the sulfur center is rendered as a trityl thioether (S-trityl) that masks the thiol's nucleophilicity and can be used to control chemoselective transformations. In peptide and chemical biology synthesis, this type of S-tritylmercapto-functionalized amino acid derivative is employed as a precursor for incorporating protected sulfur functionality into larger amino acid and peptide frameworks or for constructing sulfur-containing conjugation handles after appropriate deprotection and subsequent coupling steps.
CAT No: HB00058
CAS No:823829-31-8
Synonyms/Alias:2-[[1-(2,4-dimethoxyphenyl)-2-tritylsulfanylethyl]amino]acetic acid;
N-(1-(2,4-dimethoxyphenyl)-2-S-tritylmercapto)ethylglycine is a sulfur-functionalized glycine derivative bearing a thioether/thiol-reactive motif protected as a tritylthio group, along with a 2,4-dimethoxyphenyl substituent that supports controlled reactivity and downstream derivatization. This structure is commonly handled as a specialty amino acid building block or pharmaceutical intermediate, where the protected sulfur functionality enables selective transformations without premature thiol participation. Researchers use this compound in synthetic sequences that require a glycine-derived fragment with a masked sulfur handle for later conversion into a more reactive thiol or for incorporation into sulfur-containing linkers and motifs.
1. Sulfur-Handle Intermediate Synthesis
N-(1-(2,4-dimethoxyphenyl)-2-S-tritylmercapto)ethylglycine is frequently selected as a protected sulfur-bearing glycine building block in pharmaceutical intermediate development and specialty chemical manufacturing. The trityl-protected mercapto functionality provides a practical way to carry a sulfur stereoelectronic element through multi-step synthesis while minimizing side reactions associated with free thiols. Process chemists and medicinal chemistry teams use such glycine-derived intermediates to assemble sulfur-containing fragments that later feed into thioether/thioester formation, thiol-based coupling strategies, or sulfide motif installation in target scaffolds.
2. Thio-Functional Linker Construction
N-(1-(2,4-dimethoxyphenyl)-2-S-tritylmercapto)ethylglycine is used to build defined thio-functional linkers where a glycine spacer and a protected sulfur group are required to control chemoselectivity during coupling. In chemical biology and medicinal chemistry workflows, the glycine-derived backbone helps position the sulfur functionality for subsequent conjugation or scaffold elaboration, while the trityl-protected sulfur allows the intermediate to be handled under conditions that would otherwise be incompatible with unprotected thiols. This makes the compound a practical choice for constructing sulfur-containing tether regions in synthetic libraries, linker libraries, and advanced intermediate sets.
3. Medicinal Chemistry Scaffold Elaboration
N-(1-(2,4-dimethoxyphenyl)-2-S-tritylmercapto)ethylglycine supports medicinal chemistry programs that require incorporation of sulfur-containing motifs into small-molecule scaffolds. The presence of the 2,4-dimethoxyphenyl substituent and the protected mercapto group makes the compound useful as a modular fragment that can be carried through selective steps and then converted into a reactive sulfur species at a chosen stage of synthesis. Medicinal chemists commonly rely on such protected amino acid derivatives to generate analog series where the sulfur functionality is introduced with controlled timing, reducing undesired reactivity during earlier functional group manipulations.
4. Protected Amino Acid Fragment Libraries
N-(1-(2,4-dimethoxyphenyl)-2-S-tritylmercapto)ethylglycine is also used in the preparation of protected amino acid fragment libraries for downstream structure-activity relationship (SAR) studies and process development. Because the sulfur functionality is masked as a trityl-protected mercapto derivative, the building block can be stored and handled as a defined precursor and then converted into reactive sulfur-containing intermediates when needed. This workflow is particularly common in custom synthesis environments where researchers require a consistent, reproducible glycine-based sulfur fragment to support parallel synthesis of analogs and intermediate diversification.
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