55533-24-9

Basic information

• Product Name: Boc-4-Amino-L-phenylalanine
• Synonyms: RARECHEM BK PT 0173;(S)-2-(TERT-BUTOXYCARBONYLAMINO)-3-(4-AMINOPHENYL)PROPANOIC ACID;N-ALPHA-TBOC-P-AMINO-L-PHENYLALANINE;N-ALPHA-TERT-BUTYLOXYCARBONYL-4-AMINO-L-PHENYLALANINE;N-ALPHA-T-BUTOXYCARBONYL-L-P-AMINO-PHENYLALANINE;N-ALPHA-T-BUTOXYCARBONYL-L-(4-AMINO)-PHENYLALANINE;N-BOC-4-AMINO-L-PHENYLALANINE;4-AMINO-N-TERT-BUTOXYCARBONYL-PHENYLALANINE
• CAS NO: 55533-24-9
• Molecular Formula: C₁₄H₂₀N₂O₄
• Molecular Weight: 280.32
• Product Categories: Phenylalanine analogs and other aromatic alpha amino acids;Amino Acids;Phenylalanine [Phe, F];Unusual Amino Acids;Boc-Amino acid series;a-amino
• Mol File: 55533-24-9.mol
• Article Data: 12

Chemical Properties

• Melting Point: 124-126℃
• Boiling Point: 484.9 °C at 760 mmHg
• Flash Point: 247 °C
• Appearance: /
• Density: 1.213 g/cm³
• Storage Temp.: -15°C
• PKA: 3.74±0.10(Predicted)
• CAS DataBase Reference: Boc-4-Amino-L-phenylalanine(CAS DataBase Reference)
• NIST Chemistry Reference: Boc-4-Amino-L-phenylalanine(55533-24-9)
• EPA Substance Registry System: Boc-4-Amino-L-phenylalanine(55533-24-9)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-28
• WGK Germany: 3
• HazardClass: IRRITANT
• Hazardous Substances Data: 55533-24-9(Hazardous Substances Data)

Usage

Chemical Properties

White to off white powder

Uses

Boc-4-Amino-L-phenylalanine is an intermediate used in the synthesis of biotinylated amino acids.

Upstream product

• 86937-80-6 2-tert-butoxycarbonylamino-3-(4-nitro-phenyl)-propionic acid 
• 56613-61-7 (R)-4-nitro-phenylalanine 
• 673-06-3 D-(R)-phenylalanine 
• 33305-77-0 (2R)-2-{[(tert-butoxy)carbonyl]amino}-3-(4-nitrophenyl)propanoic acid 
• 80994-44-1 {[(tert-butoxycarbonyl)oxy]amino}(phenyl)acetonitrile 
• 949-99-5 4-nitro-3-phenyl-L-alanine 
• 24424-99-5 di-tert-butyl dicarbonate 
• 63-91-2 L-phenylalanine 
• 33173-55-6 (S)-3-(4-azidophenyl)-2-((tert-butoxycarbonyl)amino)propanoic acid 
• 33305-77-0 Boc-Phe(p-NO₂)-OH 

Downstream Products

• 623563-65-5 2-{4-[3-(4-amino-phenyl)-2-tert-butoxycarbonylamino-propionylamino]-butoxy}-6-benzyloxy-benzoic acid methyl ester 
• 154596-15-3 L-phenylalanine-4'-azobenzene 
• 232594-43-3 (S)-3-[4-[[2-(3-benzyl-ureido)-thiazole-4-carbonyl]-amino]-phenyl]-2-tert-butoxy-carbonylamino-propionic acid 
• 643018-84-2 (S)-2-(4-(2-(tert-butoxycarbonylamino)-3-methoxy-3-oxopropyl)phenylamino)benzoic acid 
• 65615-90-9 (S)-methyl 3-(4-aminophenyl)-2-((tert-butoxycarbonyl)amino)propanoate 
• 846569-62-8 (R)-3-(4-amino-3-iodophenyl)-2-tert-butoxycarbonylaminopropionic acid 
• 98044-59-8 (S)-3-(4-Benzyloxycarbonylamino-cyclohexyl)-2-tert-butoxycarbonylamino-propionic acid 
• 106566-43-2 (S)-3-(4-Benzyloxycarbonylamino-cyclohexyl)-2-tert-butoxycarbonylamino-propionic acid 
• 55533-25-0 Boc-p-amino-Phe(Z)-OH 
• 114346-31-5 (R)-3-(4-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)phenyl)-2-((tert-butoxycarbonyl)amino)propanoic acid 
• 114346-31-5 (S)-3-(4-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)phenyl)-2-((tert-butoxycarbonyl)amino)propanoic acid 

Relevant articles and documents

Structure-activity relationship studies of dipeptide-based hepsin inhibitors with Arg bioisosteres

Hepsin is a type II transmembrane serine protease (TTSP) associated with cell proliferation and overexpressed in several types of cancer including prostate cancer (PCa). Because of its significant role in cancer progression and metastasis, hepsin is an attractive protein as a potential therapeutic and diagnostic biomarker for PCa. Based on the reported Leu-Arg dipeptide-based hepsin inhibitors, we performed structural modification and determined in vitro hepsin- and matriptase-inhibitory activities. Comprehensive structure-activity relationship studies identified that the p-guanidinophenylalanine-based dipeptide analog 22a exhibited a strong hepsin-inhibitory activity (Ki = 50.5 nM) and 22-fold hepsin selectivity over matriptase. Compound 22a could be a prototype molecule for structural optimization of dipeptide-based hepsin inhibitors.

Large amino acid transporter 1 (LAT1) prodrugs of valproic acid: New prodrug design ideas for central nervous system delivery

Central nervous system (CNS) drug delivery is a major challenge in drug development because the blood-brain barrier (BBB) efficiently restricts the entry of drug molecules into the CNS at sufficient amounts. The brain uptake of poorly penetrating drugs could be improved by utilizing the transporters at the BBB with a prodrug approach. In this study, we designed four phenylalanine derivatives of valproic acid and studied their ability to utilize a large amino acid transporter 1 (LAT1) in CNS delivery with an aim to show that the meta-substituted phenylalanine prodrugs bind to LAT1 with a higher affinity compared with the affinity of the para-substituted derivatives. All of the prodrugs crossed the BBB carrier mediatedly via LAT1 in in situ rat brain perfusion. For the first time, we introduced a novel meta-substituted phenylalanine analogue promoiety which improved the LAT1 affinity 10-fold and more importantly the rat brain uptake of the prodrug 2-fold compared with those of the para-substituted derivatives. Therefore, we have characterized a new prodrug design idea for CNS drug delivery utilizing a transporter-mediated prodrug approach.

INHIBITORS OF ALPHA-4 BETA-1 MEDIATED CELL ADHESION

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