N-Boc-L-tert-Leucine

Name: N-Boc-L-tert-Leucine
Brand: ChemScene
Availability: InStock
Rating: 5 (1 reviews)

CAS No. 62965-35-9
Cat. No. CS-W008945
Molecule weightNone
Purity≥97%
MDL No.MFCD00065574

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Type	HazMat Fee
Excepted Quantity	$0.00
FedEx Limited Quantities Ground	$0.00
Hazmat Ground shipping	$50.00+
Inaccessible (Haz class 6.1 or 9), Domestic	$68.00+
Accessible (Haz class 3, 4, 5 or 8), Domestic	$158.00+
Inaccessible (Haz class 6.1 or 9), International	$108.00+
Accessible (Haz class 3, 4, 5 or 8), International	$238.00+

An item is classified as a dangerous good if our website displays Hazardous Material (HazMat) information for it.

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*For research and further manufacturing use only, not for direct human use.

Structure of 62965-35-9

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General Information

CAS No. 62965-35-9
Cat. No. CS-W008945
Purity ≥97%
MDL No. MFCD00065574
Storage 4°C
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₁₁H₂₁NO₄
Molecular Weight None
Synonym(s) (S)-2-((tert-Butoxycarbonyl)amino)-3,3-dimethylbutanoic acid;Boc-Tle-OH
SMILES CC(C)(C)[C@@H](C(O)=O)NC(OC(C)(C)C)=O

Description

N-Boc-L-tert-Leucine serves as a protected amino acid building block for peptide synthesis, featuring a stable tert-butyl carbamate group that simplifies purification and handling. This bench-stable derivative enables efficient coupling reactions under standard conditions, integrating seamlessly into complex peptide sequences without side-chain interference.

Application

N-Boc-L-tert-leucine serves as a stable, bench-ready amino acid building block for peptide synthesis and medicinal chemistry applications. The Boc protecting group ensures orthogonal handling in multi-step sequences, enabling efficient coupling and selective deprotection. Its tert-leucine side chain provides steric bulk, enhancing metabolic stability in bioactive peptides. This derivative facilitates the construction of complex scaffolds with predictable reactivity and straightforward purification.

Synthesis

Route1
- In-stock
  
  20859-02-3
- In-stock
  
  24424-99-5
- ~99%
- In-stock
  
  62965-35-9
References
- Vernalis (Oxford) Limited Patent: US6716878 B1, 2004 ; Location in patent: Page column 62 ;
Route2
- In-stock
  
  24424-99-5
- 58482-93-2
- ~%
- In-stock
  
  62965-35-9
References
- US5338726 A1, ; US 5338726 A
Route3
- 335628-21-2
- ~%
- In-stock
  
  62965-35-9
References
- Organic letters, , vol. 3, # 6 p. 897 - 899

Safety Information

Download SDS

GHS Pictogram :	GHS No : GHS07
Signal Word : Warning	UN#: N/A
Class : N/A	Packing Group : N/A
Hazard Statements : H302-H315-H319-H335
Precautionary Statements : P261-P264-P270-P271-P280-P302+P352-P304+P340-P305+P351+P338-P330-P362+P364-P403+P233-P405-P501

Quality Control

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Computational Chemistry Data

TPSA 75.63
LogP 2.0104
H_Acceptors 3
H_Donors 2
Rotatable_Bonds 2

Other Classifications

Bioactive Molecules Peptides

Life Science Amino Acids and their Derivatives Leucine and derivatives

Chemical Biology Pharmaceutical Development and Drug Discovery Research Peptide Chemistry Amino Acid Derivatives

Chemical Biology Pharmaceutical Development and Drug Discovery Research Peptide Chemistry Unnatural Amino Acid Derivatives

Chemical Biology Pharmaceutical Development and Drug Discovery Research Reagents Peptide Chemistry Amino Acid Derivatives

Chemical Biology Pharmaceutical Development and Drug Discovery Research Reagents Peptide Chemistry Unnatural Amino Acid Derivatives

Chemical Biology Peptide Chemistry Amine Protection

Chemical Biology Peptide Chemistry Amino Acid Derivatives

Biochemistry Biochemicals and Reagents Amino Acids N-Protected Amino Acids

Key Words

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CAS No. 62965-35-9

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