Description

3-Benzylsulfanyl-2-(S)-{[2-(Bis-tert-Butoxycarbonylmethyl-Amino)-Ethyl]- tert-Butoxycarbonylmethyl-Amino}-Propionic Acidtert-Butyl Ester is a sophisticated, multi-functional organic building block designed for advanced synthetic chemistry. This compound is critical for researchers and manufacturers requiring high-purity intermediates with protected functional groups for complex peptide and small molecule synthesis. It is primarily utilized by pharmaceutical R&D teams and fine chemical producers engaged in the development of novel therapeutic agents and bioactive compounds.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the multi-step synthesis of complex drug candidates, particularly those with peptide-like structures or requiring specific stereochemistry.
• Peptidomimetic Research: Used in the design and construction of peptidomimetics, where its protected amino and carboxylic acid groups allow for controlled coupling and deprotection sequences.
• Chemical Biology Probes: Acts as a building block for creating labeled or modified biomolecules used to study biological pathways and protein interactions.
• Ligand Synthesis for Catalysis: Employed in the preparation of specialized ligands for asymmetric catalysis, leveraging its chiral center and multiple coordination sites.
• Custom Synthesis & Contract Manufacturing: A valuable starting material for custom synthesis houses and CDMOs (Contract Development and Manufacturing Organizations) producing bespoke compounds for client projects.
• Academic Research: Supports methodological development in organic synthesis and medicinal chemistry within university and institutional laboratories.

Basic Information

Product Name	3-Benzylsulfanyl-2-(S)-{[2-(Bis-tert-Butoxycarbonylmethyl-Amino)-Ethyl]- tert-Butoxycarbonylmethyl-Amino}-Propionic Acidtert-Butyl Ester
CAS No.	1331899-92-3
Molecular Formula	C33H52N2O8S
Molecular Weight	636.85 g/mol
Synonyms	Boc-Protected Cysteine Derivative; tert-Butyl 3-(Benzylthio)-2-[(2-{[(1,1-dimethylethoxy)carbonyl]({2-[(1,1-dimethylethoxy)carbonyl]ethyl})amino}ethyl)({2-[(1,1-dimethylethoxy)carbonyl]ethyl})amino]propanoate; Nα,Nε-Bis-Boc-Nε-Boc-Lysine Derivative Analog; S-Benzyl-L-cysteine Derivative, Boc3; (2S)-2-({2-[Bis(2-{[(tert-butoxy)carbonyl]methyl}amino)ethyl]amino}-3-(phenylmethyl)sulfanylpropanoic acid 1,1-dimethylethyl ester; Advanced Peptide Coupling Intermediate
EINECS	Contact for details

Quality Control

Our production of this high-value intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and purity suitable for sensitive pharmaceutical research. Each lot undergoes comprehensive analytical characterization, including HPLC for purity and chiral analysis to confirm stereochemical integrity. A detailed Certificate of Analysis (COA) documenting identity, assay, and impurity profiles is provided with every shipment to support your regulatory and R&D documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C in a dry, well-ventilated area. The product is light-sensitive (store away from light) and should be handled under an inert atmosphere when appropriate to maximize shelf-life stability. Keep away from strong acids and organic solvents.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 99.0% ee
Water Content (KF)	≤ 0.5%
Residual Solvents (GC)	Meets ICH guidelines

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.