(R)-4-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-((tert-butoxycarbonyl)amino)butanoic acid

Name: (R)-4-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-((tert-butoxycarbonyl)amino)butanoic acid
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CAS No. 131570-57-5
Cat. No. CS-0099798
Purity≥96%
MDL No.MFCD00798625

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(R)-4-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-((tert-butoxycarbonyl)amino)butanoic acid|CS-0099798

Structure of 131570-57-5

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Description

(R)-4-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-((tert-butoxycarbonyl)amino)butanoic acid is a chiral building block featuring a fluorenylmethyl carbamate (Fmoc) group and a tert-butyl carbamate (Boc) side chain. This combination enables orthogonal protection in peptide synthesis, facilitating selective deprotection sequences. The molecule's bench-stable nature supports reliable handling under standard conditions.

Application

(R)-4-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-((tert-butoxycarbonyl)amino)butanoic acid serves as a key chiral building block in peptide synthesis, enabling the efficient construction of complex peptide architectures. The Fmoc group provides orthogonal protection for the α-amino function, while the Boc-labeled side chain amine allows selective deprotection and functionalization. Its bench-stable nature and compatibility with standard coupling conditions facilitate reliable, high-yield transformations in both solid-phase and solution-phase workflows.

General Information

CAS No. 131570-57-5
Cat. No. CS-0099798
Purity ≥96%
MDL No. MFCD00798625
Storage 4°C
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₂₄H₂₈N₂O₆
Molecular Weight 440.49
Synonym(s) Boc-D-Dab(Fmoc)-OH
SMILES O=C(O)[C@H](NC(OC(C)(C)C)=O)CCNC(OCC1C2=C(C3=C1C=CC=C3)C=CC=C2)=O

Computational Chemistry Data

TPSA 113.96
LogP 3.8931
H_Acceptors 5
H_Donors 3
Rotatable_Bonds 7

Safety Information

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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

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Other Classifications

Building Blocks Skeleton Chiral compounds Chiral Building Blocks

Life Science Amino Acids and their Derivatives Alanine and derivatives

Chemical Biology Peptide Chemistry Amine Protection

Chemical Biology Peptide Chemistry Unnatural Amino Acid Derivatives

Key Words

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(R)-4-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-((tert-butoxycarbonyl)amino)butanoic acid

CAS No. 131570-57-5

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