17460-58-1Relevant articles and documents
Ecological base-conditioned preparation of dipeptides using unprotected α-amino acids containing hydrophilic side chains
Ezawa, Tetsuya,Jung, Seunghee,Kawashima, Yuya,Noguchi, Takuya,Imai, Nobuyuki
, p. 689 - 696 (2017/07/22)
The coupling reactions of 3-phenylpropanoic acid and Ncarboxybenzyl á-amino acids with unprotected á-amino acids containing hydrophilic side chains such as aliphatic alcohol, aromatic alcohol, thiol, carboxylic acid, and amide afforded the corresponding amides in 6696% yield without racemization via the corresponding mixed carbonic carboxylic anhydrides under basic conditions through an ecological green synthetic method.
Chemical ligation from O-acyl isopeptides via 8-and 11-membered cyclic transition states
Panda, Siva S.,Elagawany, Mohamed,Marwani, Hadi M.,Calyakan, Eray,El Khatib, Mirna,Oliferenko, Alexander,Alamry, Khalid A.,Katritzky, Alan R.
, p. 91 - 106 (2014/04/17)
Unprotected O-acylated serine and O-acylated threonine isopeptides have been synthesized, and their conversion to native tripeptides and tetrapeptides by O-to N-terminus transfer investigated. Ligations involving 8-and 11-membered cyclic transition states
Highly diastereoselective peptide chain extensions of unprotected amino acids with N-(Z-α-aminoacyl)benzotriazoles
Katritzky, Alan R.,Suzuki, Kazuyuki,Singh, Sandeep K.
, p. 2645 - 2652 (2007/10/03)
Coupling an unprotected amino acid or dipeptide in partially aqueous solution with a readily available N-(Z-α-amino-acyl)benzotriazole or N-(Z-α-aminopetidoyl)benzotriazole affords N-terminal-protected di-, tri-, and tetrapeptides in yields of 85-98% (average 95% for 2a-i, 93% for 4a-f and 4a′, 86% for 5a-b) with minimal epimerization.