Peptide SynthesisviaAmino Acid Active Esters. II.1Some Abnormal Reactions during Peptide Synthesis

1962 ◽  
Vol 84 (7) ◽  
pp. 1279-1283 ◽  
Author(s):  
Murray. Goodman ◽  
Kenneth C. Stueben
Keyword(s):  
Peptide Synthesis ◽  
Active Esters

Series of sequential polypeptides containing lysine or arginine: Preparation and characterization

1988 ◽  
Vol 53 (1) ◽  
pp. 145-156 ◽  
Author(s):  
Jana Pírková ◽  
Svetlana Churkina ◽  
Vladimír Gut ◽  
Ivo Frič ◽  
Karel Bláha
Keyword(s):  
Molecular Weight ◽  
Amino Acid ◽  
Peptide Synthesis ◽  
Average Molecular Weight ◽  
Basic Amino Acid ◽  
Cd Spectra ◽  
Active Esters ◽  
Marked Tendency

The sequential polypeptides (Lys-Ala)n, (Lys-Ala-Ala)n, (Lys-Ala-Ala-Ala)n, (Lys-Leu-Ala)n, (Lys-Leu-Ala-Ala)n, (Lys-Leu-Ala-Ala-Ala)n, (Lys-Ala-Leu)n, (Lys-Ala-Leu-Ala)n, (Orn-Leu-Ala)n,(Arg-Ala-Ala)n, (Arg-Leu-Ala)n, (Arg-Leu-Ala-Ala)n, (Arg-Ala-Leu)n, and (Arg-Ala-Leu-Ala)n were synthesized by polymerization of active esters (1-succinimidyl or pentafluorophenyl) of the corresponding Nα-deblocked monomers. The monomers were prepared using the usual methods of peptide synthesis in solution. Upon dialysis, the average molecular weight of the polymer was 6 000-9 000 as determined by sedimentation in ultracentrifuge. Polypeptides, containing leucine in addition to the basic amino acid, showed a marked tendency to aggregation. CD spectra of the products were measured for characterization.

ChemInform Abstract: RIGID ACTIVE ESTERS IN PEPTIDE SYNTHESIS

1974 ◽  
Vol 5 (24) ◽  
pp. no-no
Author(s):  
MIKLOS BODANSZKY ◽  
MARY LYNN FINK ◽  
KENNETH W. FUNK ◽  
MICHIO KONDO ◽  
CYNTHIA YANG LIN ◽  
...  
Keyword(s):  
Peptide Synthesis ◽  
Active Esters

Active esters in solid-phase peptide synthesis

1989 ◽  
Vol 8 (4) ◽  
pp. 461-469 ◽  
Author(s):  
Miklos Bodanszky ◽  
Maria A. Bednarek
Keyword(s):  
Peptide Synthesis ◽  
Solid Phase ◽  
Solid Phase Peptide Synthesis ◽  
Active Esters

ChemInform Abstract: THE USE OF N-HYDROXY-5-NORBORNENE-2,3-DICARBOXIMIDE ACTIVE ESTERS IN PEPTIDE SYNTHESIS

1974 ◽  
Vol 5 (49) ◽  
pp. no-no
Author(s):  
M. FUJINO ◽  
S. KOBAYASHI ◽  
M. OBAYASHI ◽  
T. FUKUDA ◽  
S. SHINAGAWA ◽  
...  
Keyword(s):  
Peptide Synthesis ◽  
Active Esters

Dimedone (5,5-Dimethylcyclohexane-1,3-dione) as a protecting agent for amino groups in peptide synthesis

1964 ◽  
Vol 17 (11) ◽  
pp. 1282 ◽  
Author(s):  
B Halpern ◽  
LB James
Keyword(s):  
Amino Acid ◽  
Peptide Synthesis ◽  
Amino Acid Esters ◽  
Protecting Group ◽  
Amino Groups ◽  
Active Esters ◽  
Optically Pure ◽  
Derivatives Of ◽  
Protected Peptides ◽  
Acid Esters

The reaction of dimedone (5,5-dimethylcyclohexane-1,3-dione) with amino-acid "active" esters leads to optically pure enamine derivatives. The dimedone derivatives of amino acid esters could also be converted by way of their hydrazides to the corresponding azides. The thiophenyl ester and azide derivatives have been used directly for peptide synthesis. The protecting group can easily be removed from the N-protected peptides by means of aqueous bromine, with the formation of 2,2-dibromodimedone and the hydrobromide of the corresponding peptide ester.

ChemInform Abstract: NEW 4-OXIMINO-5-ACYLIMINOPYRAZOLINE ACTIVE ESTERS IN PEPTIDE SYNTHESIS PART 5

1975 ◽  
Vol 6 (4) ◽  
pp. no-no
Author(s):  
PAOLO GIORI ◽  
MARIO GUARNERI ◽  
DIONISIO MAZZOTTA ◽  
CARLO ALBERTO BENASSI
Keyword(s):  
Peptide Synthesis ◽  
Active Esters
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