Examples of 'protected amino acid' in a sentence
Meaning of "protected amino acid"
protected amino acid: Indicates an amino acid that has been shielded or preserved in some way, often for scientific or research purposes
How to use "protected amino acid" in a sentence
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protected amino acid
Protected amino acid sequences are cleavable by enzymes.
Aqueous work up as described above yielded the protected amino acid.
The ester of protected amino acid was obtained.
After deprotection of the amino function another activated protected amino acid is added.
A protected amino acid such as an ethyl ester is preferred.
Each feature is occupied by a protected amino acid from a previous synthesis cycle step.
The phosphorochloridate may be prepared from an aryloxy phosphorodichloridate and a suitably protected amino acid derivative.
The protected amino acid is then converted to an acid halide.
The protecting group is removed and a second protected amino acid residue coupled.
Many suitably protected amino acid derivatives are commercially available.
Evaporation of the solvent afforded the N-Boc protected amino acid as a white solid.
Other protected amino acid derivatives can be prepared by literature methods.
The present inventors have established that protected amino acid sequences are cleavable by enzymes.
Boc protected amino acid is used for the last residue.
The symbol A means herein properly protected amino acid such as its carboxamide derivatives.
See also
The protected amino acid is condensed on a suitable resin, for example a Wang-Merrifield resin.
In this procedure an a-amino protected amino acid is bound to a resin support.
Each protected amino acid residue-coupled solid support is removed from its respective container.
A process as in claim 14 wherein the protected amino acid is the methyl ester of phenylalanine.
General procedures for preparing peptides involve initially attaching a carboxyl-terminal protected amino acid to the resin.
The above protected amino acid can be those available commercially.
Optionally cleaving off protecting groups from protected amino acid side chains, and.
These protected amino acid derivatives were dissolved in N-methylpyrrolidone.
This procedure comprises attachment of a Fmoc protected amino acid to a polystyrene 2-chlorotritylchloride resin.
This protected amino acid is then reacted with chloroacetaldoxime as in Example 1.
To the resulting resin peptide is then coupled the penultimate C-terminal protected amino acid.
Alkaline hydrolysis gives the protected amino acid derivative 49 in good overall yield.
Protected amino acid N-carboxy anhydrides for use in polymer synthesis are also permitted.
Stereoselective imine reduction then furnishes the protected amino acid 24.
The protected amino acid derivatives used were standard Fmoc-amino acids supplied from e . g.
In still a further embodiment of the invention, the enantiomerically pure protected amino acid is L-Boc-leucine.
In this procedure a protected amino acid bearing R1 or protected R1 is bound to a resin support.
In still a further embodiment of the invention, the enantiomerically pure protected amino acid is L-Boc-phenylalanine.
Protected amino acid I was prepared from D-tyrosine in five steps.
Piperazine 1 is added to PS-carbodiimide resin, and an FMOC protected amino acid.
N-a-amino protected amino acid is dissolved in DMF together with 3 eq.
Coupling of amino acids was performed as follows, FMOC protected amino acid 25 mM in DMF.
N - a-amino protected amino acid was dissolved in DMF together with 3 eq.
In Scheme 4, the mannosamine glycoside 1, is treated with the active ester of a protected amino acid e.
In this manner, the protected amino acid is introduced at position C-20 on the camptothecin molecule.
The process of claim 9, wherein the primary amine is a C-terminally protected amino acid derivative.
Min 5 . Addition of the preactivated protected amino acid activation by 1 equivalent of TBTU and.
Fmoc protected amino acid synthesis was performed using the Applied Biosystems Model 433 Peptide Synthesizer.
Using a resin with a suitably bound C-terminal protected amino acid from the group A ₁ ₀ ;.
Thereafter, a protected amino acid is added as described in Example 5B.
T-Butyl-based side chain protection and Fmoc-a-amino protected amino acid derivatives were used.
EX-3 This protected amino acid is then reacted with chloroacetaldoxime as described in Example 1.
Examples 13-15 were made substantially according to Example 12 but using the appropriate protected amino acid.
The method implies activation of a protected amino acid with phosphorus oxychloride in pyridine at -15°C.
The protected amino acid Boc-Cha-OH was purchased from Bachem, CA.
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