Boc-beta-chloro-Ala-OH

Boc-beta-chloro-Ala-OH is a protected amino acid derivative in which the alanine backbone bears a β-chloro substituent on the side chain and the α-amino group is masked as a Boc (tert-butoxycarbonyl) carbamate. The molecule contains a free carboxylic acid (-COOH) and a carbamate-protected amine, with the β-chloro functionality providing a reactive electrophilic handle for subsequent nucleophilic substitution or other side-chain functionalization during peptide and amino-acid derivative synthesis. In synthetic workflows, it is used as a stepwise building block to control chemoselectivity of the amine while introducing a β-halogenated alanine motif for incorporation into peptides or for preparing further substituted analogues used in chemical biology and structure-activity studies.

Designed for biological research and industrial applications, not intended for individual clinical or medical purposes.

CAT No: CP27385

CAS No:71404-98-3

Synonyms/Alias:boc-beta-chloro-ala-oh;71404-98-3;AC1ODTV4;C8H14ClNO4;SCHEMBL269253;CTK2H5579;NMRCVEILBKVWIK-YFKPBYRVSA-N;ZINC2567619;8591AE;KM1401;AKOS025312268;N-(tert-butoxycarbonyl)-3-chloro-L-alanine;TR-023493;FT-0679738;N-(tert-Butoxycarbonyl)-3-chloro-L-ala-nine;L-Alanine,3-chloro-N-[(1,1-dimethylethoxy)carbonyl]-;(2R)-2-[(tert-butoxycarbonyl)amino]-3-chloropropanoicacid;(2R)-3-chloro-2-[(2-methylpropan-2-yl)oxycarbonylamino]propanoicacid

Custom Peptide Synthesis
cGMP Peptide
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  • CMC information required for an IND
  • IND and NDA support
  • Drug master files (DMF) filing
M.F/Formula
C8H14ClNO4
M.W/Mr.
223.66

Boc-beta-chloro-Ala-OH is a protected β-chloro alanine derivative bearing an N-Boc group and a carboxylic acid, designed for incorporation as a functionalized amino acid building block in peptide and intermediate synthesis. The β-chloro substituent provides a reactive handle for downstream derivatization or for introducing a halogenated side-chain motif into peptide frameworks, while the Boc protection supports controlled coupling chemistry in protected-amino-acid workflows.

1. Halogenated Peptide Building Block

Boc-beta-chloro-Ala-OH is used by custom peptide synthesis groups and peptide chemistry researchers to introduce a β-chloro alanine residue into peptide segments where a halogenated side-chain is required for structure-activity relationship studies, conformational probing, or chemical handle placement. The N-Boc protection supports standard protected-amino-acid assembly strategies, enabling reliable incorporation into peptide sequences during segment coupling or solution-phase/automated workflows. The β-chloro substituent is particularly valuable when the final peptide needs a site for subsequent chemical modification, such as nucleophile-mediated substitution or further functional group elaboration, without changing the peptide backbone.

2. Side-Chain Functionalization Intermediate

Boc-beta-chloro-Ala-OH serves as a practical intermediate for preparing β-functionalized alanine derivatives used in medicinal chemistry and chemical biology programs. Researchers leverage the presence of the β-chloro group as a downstream derivatization site to access a range of substituted alanine analogs that can be used to tune polarity, steric profile, or reactivity in larger scaffolds. The Boc-protected amino functionality helps keep the molecule in a controlled, protected form during the early stages of intermediate synthesis, which is useful when the β-chloro position must remain available for selective transformation in later steps.

3. Pharmaceutical Intermediate Development

Boc-beta-chloro-Ala-OH is commonly selected in pharmaceutical intermediate development and specialty chemical manufacturing when a halogenated amino acid motif is needed as a building block toward peptidomimetics, amino acid-derived fragments, or protected amino acid intermediates. Process chemists value the combination of an N-Boc-protected amino group with a defined β-chloro substitution pattern because it can be carried through multi-step synthesis while preserving a functional handle for later diversification. This makes the material a convenient starting point for generating chemically defined, non-proteinogenic amino acid derivatives used in downstream library synthesis and SAR campaign workflows.

Size
1 g;5 g;
InChI
1S/C8H14ClNO4/c1-8(2,3)14-7(13)10-5(4-9)6(11)12/h5H,4H2,1-3H3,(H,10,13)(H,11,12)/t5-/m0/s1
InChI Key
NMRCVEILBKVWIK-YFKPBYRVSA-N
Canonical SMILES
CC(C)(C)OC(=O)NC(CCl)C(=O)O

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