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HomeProduct name listBoc-L-Tyr(tBu)-OH

Boc-L-Tyr(tBu)-OH

Synonym(s):Boc-O-tert-butyl-L-tyrosine;Boc-Tyr(tBu)-OH;N-α-t.-Boc-O-t.-butyl-L-tyrosine

Boc-L-Tyr(tBu)-OH Structural

What is Boc-L-Tyr(tBu)-OH?

Chemical properties

White powder

The Uses of Boc-L-Tyr(tBu)-OH

N-Boc-O-tert-butyl-L-tyrosine is used as pharmaceutical intermediate.

What are the applications of Application

Boc-Tyr(tBu)-OH is an important organic reagent that can be used as a building block for the synthesis of many organic compounds. This compound could be used as a starting material to synthesize TPE-Tyr. TPE-Tyr can undergo covalent crosslinking via the formation of dityrosine linkages by exploiting horseradish peroxidase (HRP)-catalyzed phenol polymerization in the presence of H2O2, thereby activating the AIE process and switching on fluorescence emission of TPE core motif[1].

Synthesis

O-tert-butyl-L-tyrosine (2.00 g, 8.42 mmol, 1.0 equiv.) and di-tert-butyl dicarbonate (2.20 g, 10.10 mmol, 1.2 equiv.) were dissolved in a mixture of THF (15 mL) and NaOH (1 N, 30 mL) and stirred at room temperature for 10 h. THF was removed under reduced pressure, and the pH of residual solution was adjusted to 3.0 with dilute hydrochloric acid and the crude product was extracted by ethyl acetate. The combined organic phases was washed with saturated brine (pH 3.0) and dried over anhydrous Na2SO4. The organic solvent was removed under reduced pressure and dried in a vacuum oven at room temperature overnight, affording (N-Boc-O-tert-butyl)-L-Tyr (Boc-O-tert-butyl-L-tyrosine) as a yellowish solid (2.64 g, 93%)[1].
Boc-O-tert-butyl-L-tyrosine

References

[1] Wang X, et al. Highly Selective Fluorogenic Multianalyte Biosensors Constructed via Enzyme-Catalyzed Coupling and Aggregation-Induced Emission. Journal of the American Chemical Society, 2014; 136: 9890–9893.

Properties of Boc-L-Tyr(tBu)-OH

Melting point: 113-118 °C
Boiling point: 484.0±40.0 °C(Predicted)
alpha  -15 º (C=1% IN DMF)
Density  1.116±0.06 g/cm3(Predicted)
storage temp.  2-8°C
solubility  Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc.
form  powder to crystal
pka 3.00±0.10(Predicted)
color  White to Almost white
optical activity [α]20/D 15.0±1.0°, c = 1% in DMF
Water Solubility  Soluble in DMF. Insoluble in water.
BRN  4327336
InChI InChI=1S/C18H27NO5/c1-17(2,3)23-13-9-7-12(8-10-13)11-14(15(20)21)19-16(22)24-18(4,5)6/h7-10,14H,11H2,1-6H3,(H,19,22)(H,20,21)/t14-/m0/s1
CAS DataBase Reference 47375-34-8(CAS DataBase Reference)

Safety information for Boc-L-Tyr(tBu)-OH

Computed Descriptors for Boc-L-Tyr(tBu)-OH

InChIKey ZEQLLMOXFVKKCN-AWEZNQCLSA-N
SMILES C(O)(=O)[C@H](CC1=CC=C(OC(C)(C)C)C=C1)NC(OC(C)(C)C)=O

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