The methoxymethyl cation cleaves peptide bonds in the gas phase
作者:Michael A. Freitas、Richard A. J. O’Hair、Suresh Dua、John H. Bowie
DOI:10.1039/a703335d
日期:——
Methoxymethyl cations and simple N-acyl amino acids and
dipeptides react in the gas phase to form [M +
MeOCH
2
]
+
ions which fragment via a number
of pathways including amide bond cleavage.
Steiger, Helvetica Chimica Acta, 1934, vol. 17, p. 579
作者:Steiger
DOI:——
日期:——
Peptide ligation by chemoselective aminonitrile coupling in water
作者:Pierre Canavelli、Saidul Islam、Matthew W. Powner
DOI:10.1038/s41586-019-1371-4
日期:2019.7
N-to-C peptide ligation. Our model unites prebiotic aminonitrile synthesis and biological α-peptides, suggesting that short N-acyl peptide nitriles were plausible substrates during early evolution.Prebiotic peptide formation is achieved through chemoselective, high-yielding ligation of α-aminonitriles in water, showing selectivity for α-peptide coupling and tolerance of all proteinogenic amino acid residues
Functionalized DL-amino acid derivatives. Potent new agents for the treatment of epilepsy
作者:Judith D. Conley、Harold Kohn
DOI:10.1021/jm00386a021
日期:1987.3
Structural analogues of the potent known anticonvulsant agent N-acetyl-DL-alanine N-benzylamide (1a) have been prepared (16 examples). The pharmacological activities of these products were evaluated in the maximal electroshock seizure (MES), the subcutaneous pentylenetetrazole seizure threshold (sc Met), and the rotorod (Tox) tests. The median effective doses (ED50) and the median toxic doses (TD50)