55478-54-1Relevant articles and documents
Superiority of the carbamoylmethyl ester as an acyl donor for the kinetically controlled amide-bond formation mediated by α-chymotrypsin
Miyazawa, Toshifumi,Ensatsu, Eiichi,Yabuuchi, Nobuhiro,Yanagihara, Ryoji,Yamada, Takashi
, p. 390 - 395 (2007/10/03)
The superiority of the carbamoylmethyl ester as an acyl donor for the α-chymotrypsin-catalysed kinetically controlled peptide-bond formation is demonstrated in the couplings of an inherently poor amino acid substrate, Ala, with various amino acid residues as amino components and in the couplings of non-protein amino acids such as halogenophenylalanines as carboxylic components. Furthermore, this approach is applied to the amide-bond formation between an amino acid residue and a chiral amine, which is highly diastereoselective.
α-chymotrypsin-catalysed peptide synthesis via the kinetically controlled approach using activated esters as acyl donors in organic solvents with low water content: Incorporation of non-protein amino acids into peptides
Miyazawa, Toshifumi,Nakajo, Shin'ichi,Nishikawa, Miyako,Hamahara, Kazumi,Imagawa, Kiwamu,Ensatsu, Eiichi,Yanagihara, Ryoji,Yamada, Takashi
, p. 82 - 86 (2007/10/03)
The α-chymotrypsin-catalyzed peptide synthesis via the kinetically controlled approach using activated esters as acyl donors in orgnanic solvents with low water content was presented. The methyl esters of N-Z derivatives of racemic non-protein amino acids were chosen as carboxy components. They allowed the peptide-bond formation and optical resolution simultaneously to yield homochiral peptides. This method is useful for the incorporation of non-protein amino acids into peptides.
α-Chymotrypsin-catalysed peptide synthesis using activated esters as acyl donors
Miyazawa, Toshifumi,Nakajo, Shin'ichi,Nishikawa, Miyako,Imagawa, Kiwamu,Yanagihara, Ryoji,Yamada, Takashi
, p. 2867 - 2868 (2007/10/03)
The coupling efficiency in α-chymotrypsin-catalysed peptide synthesis is greatly improved by the use of activated esters such as the 2,2,2-trifluoroethyl ester as acyl donor instead of the conventional methyl ester; this approach is useful for the incorporation of non-protein amino acids into peptides.
3,5-substituted 4,5-dihydroisoxazoles as transglutaminase inhibitors
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, (2008/06/13)
The present invention is directed to certain 3,5 substituted, 4,5-dihydroisoxazoles, and methods for their use. These compounds are transgulatminase inhibitors, and are particularly effective in the inhibition of epidermal transglutaminase and the treatment of acne.
Porcine Pancreatic Lipase Catalyzed Enantioselective Hydrolysis of Esters of N-Protected Unusual Amino Acids
Miyazawa, Toshifumi,Iwanaga, Hitoshi,Ueji, Shinichi,Yamada,Takashi,Kuwata, Shigeru
, p. 2219 - 2222 (2007/10/02)
Porcine pancreatic lipase catalyzed the highly enantioselective hydrolysis of a kind of α-substituted carboxylic esters, i.e., the 2,2,2-trifluoroethyl esters of the N-benzyloxycarbonyl derivatives of unusual amino acids.