Boc-D-Leucine monohydrate is a protected amino acid derivative in which the amino group of D-leucine is carbamated with a tert-butoxycarbonyl (Boc) protecting group, while the carboxylic acid remains present as part of the amino acid framework. The molecule bears a branched isobutyl side chain characteristic of leucine and is supplied as a monohydrate, with stereochemistry specified as D at the alpha carbon. In peptide and amino acid synthesis workflows, the Boc-protected amino functionality supports chemoselective stepwise coupling by reducing undesired reactions of the free amine, and the monohydrate form can be handled as the solid precursor for further conversion into peptide-related intermediates.
CAT No: CP01305
CAS No:16937-99-8
Synonyms/Alias:BOC-D-Leucinemonohydrate;16937-99-8;200937-17-3;Boc-D-Leucinehydrate;Boc-D-Leu-OH.H2O;N-Boc-D-LeucineMonohydrate;(R)-2-((tert-Butoxycarbonyl)amino)-4-methylpentanoicacidhydrate;SBB065789;BOC-D-LEU-OHH2O;BOC-D-leucineH2O;AC1MC5M2;KSC496M7H;SCHEMBL2838131;CTK3J6673;MolPort-004-959-663;URQQEIOTRWJXBA-DDWIOCJRSA-N;ACT07343;ANW-22398;FD3022;AKOS015892719;AM81872;RTR-007396;(2R)-4-methyl-2-[(2-methylpropan-2-yl)oxycarbonylamino]pentanoicAcidHydrate;(tert-butoxycarbonyl)-D-leucinehydrate;AK-45992
Boc-D-Leucine monohydrate is a protected D-amino acid building block featuring a Boc-protected amino group and a leucine side chain, supplied as the monohydrate form. This stereochemically defined D-configuration makes it a practical choice for preparing D-amino acid-containing peptides and peptide analogs where stereochemical control is required. In peptide synthesis workflows, the Boc group enables reliable amino protection during coupling and subsequent orthogonal deprotection strategies.
1. D-Amino Acid Peptide Synthesis
Boc-D-Leucine monohydrate is used by peptide synthesis groups to incorporate D-leucine residues into custom peptides and peptidomimetics, supporting studies that rely on stereochemical variation at specific positions. Peptide chemists commonly select this Boc-protected form when they are assembling segments in a protected-amino-acid strategy, because the protected nitrogen helps maintain chemoselectivity during stepwise chain assembly. The leucine side chain provides the hydrophobic, aliphatic character typical of leucine-based sequence motifs, which is frequently leveraged in structure-activity relationship work and conformational studies of peptide analogs.
2. Solution-Phase Segment Coupling
Boc-D-Leucine monohydrate is frequently employed in solution-phase peptide synthesis and segment condensation, where protected amino acids are converted into coupling-ready intermediates as part of a larger synthetic sequence. Researchers developing longer peptide targets often rely on Boc-protected building blocks to manage protecting-group compatibility across multiple coupling and deprotection steps. The monohydrate form can be advantageous for reproducible weighing and handling in synthetic planning, while the D-stereocenter ensures that the resulting peptide segment carries the intended stereochemical identity through downstream assembly.
3. Peptide Library and Analog Development
Boc-D-Leucine monohydrate supports medicinal chemistry and chemical biology teams building peptide libraries that explore how D-amino acid substitutions influence stability, folding propensity, and structure-function relationships. In these workflows, the Boc-protected, stereodefined leucine unit is a convenient way to standardize incorporation of D-residues across a panel of analogs while keeping the side-chain identity consistent. The resulting D-leucine-containing intermediates are then used for parallel synthesis of peptides or peptide fragments intended for downstream characterization by chromatography, mass spectrometry, and other analytical methods.
4. Pharmaceutical Intermediate Manufacturing
Boc-D-Leucine monohydrate is also used as a defined, protected amino acid intermediate in industrial and contract manufacturing settings that produce D-amino acid-containing peptide intermediates for further processing. Process development teams value the clear stereochemical definition and the Boc protection pattern because it aligns with established protected-building-block supply chains used in peptide intermediate production. This makes the material a practical input for manufacturing workflows that require consistent quality of protected D-amino acid units prior to subsequent coupling, deprotection, or conversion into higher-order peptide building blocks.
4. Immune-awakening Saccharomyces-inspired nanocarrier for oral target delivery to lymph and tumors
5. Emu oil in combination with other active ingredients for treating skin imperfections
If you have any peptide synthesis requirement in mind, please do not hesitate to contact us at . We will endeavor to provide highly satisfying products and services.
Creative Peptides is a trusted CDMO partner specializing in high-quality peptide synthesis, conjugation, and manufacturing under strict cGMP compliance. With advanced technology platforms and a team of experienced scientists, we deliver tailored peptide solutions to support drug discovery, clinical development, and cosmetic innovation worldwide.
From custom peptide synthesis to complex peptide-drug conjugates, we provide flexible, end-to-end services designed to accelerate timelines and ensure regulatory excellence. Our commitment to quality, reliability, and innovation has made us a preferred partner across the pharmaceutical, biotechnology, and personal care industries.