67089-92-3Relevant academic research and scientific papers
Conversion of L-cysteine into D-α-amino acids and related transformations
Duthaler, Rudolf O.,Wyss, Bernhard
, p. 4667 - 4680 (2011)
Naturally configured cysteine is converted into 4-substituted thiazolidines via the 4-carbaldehyde corresponding to the serine derived Garner's aldehyde. The key transformation is the conversion into 5-thiazolidinones by 1O2 oxidatio
A Short stereoselective synthesis of prepiscibactin using a SmI2-mediated reformatsky reaction and zn2+-induced asymmetric thiazolidine formation
Segade, Yuri,Montaos, Marcos A.,Rodrguez, Jaime,Jimnez, Carlos
supporting information, p. 5820 - 5823 (2015/02/19)
Prepiscibactin (1) is a possible intermediate in the biosynthesis of piscibactin, the siderophore responsible for the iron uptake of the bacterium Photobacterium damselae subsp. piscicida, the aethiological agent of fish pasteurellosis. Compound 1 was syn
Rapid and specific post-synthesis modification of DNA through a biocompatible condensation of 1,2-aminothiols with 2-cyanobenzothiazole
Cheng, Yunfeng,Peng, Hanjing,Chen, Weixuan,Ni, Nanting,Ke, Bowen,Dai, Chaofeng,Wang, Binghe
supporting information, p. 4036 - 4042 (2013/04/24)
Post-synthesis modification of DNA is an important way of functionalizing DNA molecules. Herein, we describe a method that first enzymatically incorporates a cyanobenzothiazole (CBT)-modified thymidine. The side-chain handle CBT can undergo a rapid and site-specific cyclization reaction with 1,2-aminothiols to afford DNA functionalization in aqueous solution. Another key advantage of this method is the formation of a single stereo/regioisomer in the process, which allows for precise control of DNA modification to yield a single component for aptamer selection work and other applications. The first enzymatic incorporation of a cyanobenzothiazole (CBT)-modified thymidine has been developed. The side-chain handle CBT can undergo a rapid and site-specific cyclization reaction with 1,2-aminothiols to enable DNA functionalization in aqueous solution. A key advantage of this method is the formation of a single stereo/regioisomer in the process, which allows for precise control of DNA modification to yield a single component (see scheme). Copyright
Memory of chirality in the electrochemical oxidation of thiazolidine-4-carboxylic acid derivatives
Wanyoike, George Ng'Ang'A,Matsumura, Yoshihiro,Kuriyama, Masami,Onomura, Osamu
experimental part, p. 1177 - 1185 (2010/10/02)
Memory of chirality in the electrochemical oxidation of thiazolidine-4-carboxylic acid derivatives was observed. The relatively larger size of sulphur atom than the oxygen atom for oxazolidine-4-carboxylic acid derivative may slightly improved the enantioselectivities of the oxidized products. The bulkier penicillamine derivative 1c furnished 2c with much better enantioselectivity (91% ee) than that of the cysteine derivative 2b (85% ee). The presence of two extra dimethyl groups, for the penicillamine derivative improved the enantioselectivities of the thiazolidine derivatives from 85% ee to 91 % ee.
Decoration of Au and Ag nanoparticles on self-assembling pseudopeptide-based nanofiber by using a short peptide as capping agent for metal nanoparticles
Bose, Partha Pratim,Drew, Michael G. B.,Banerjee, Arindam
, p. 2489 - 2492 (2008/02/05)
The surface of a nanofiber that is formed from a self-assembling pseudopeptlde has been decorated by gold and silver nanoparticles that are stabilized by a dipeptide. Transmission electron microscopic images make the decoration visible. In this paper, a new strategy of mineralizing a pseudopeptide based nanofiber by gold and silver nanoparticles with use of a two-component nanografting method is described.
Effects of steric bulk and stereochemistry on the rates of?diketopiperazine formation from N-aminoacyl-2,2-dimethylthiazolidine-4-carboxamides (Dmt dipeptide amides)-a model for a new prodrug linker system
Suaifan, Ghadeer A.R.Y.,Mahon, Mary F.,Arafat, Tawfiq,Threadgill, Michael D.
, p. 11245 - 11266 (2007/10/03)
A peptide-like self-immolative molecular clip is required for release of active drugs from prodrugs by endopeptidases. Upon cleavage from the carrier, this clip must collapse and release the drug rapidly. A series of aminoacyl-5,5-dimethylthiaproline (Aaa
Synthesis of proline-modified analogues of the neuroprotective agent glycyl-L-prolyl-glutamic acid (GPE)
Harris, Paul W.R.,Brimble, Margaret A.,Muir, Victoria J.,Lai, Michelle Y.H.,Trotter, Nicholas S.,Callis, David J.
, p. 10018 - 10035 (2007/10/03)
The synthesis of ten proline-modified analogues of the neuroprotective tripeptide GPE is described. Five of the analogues incorporate a proline residue with a hydrophobic group at C-2 and two further analogues have this side chain locked into a spirolactam ring system. The pyrrolidine ring was also modified by replacing the γ-CH2 group with sulfur and/or incorporation of two methyl groups at C-5.
Boc-L-Dmt-OH as a Fully N,S-Blocked Cysteine Derivative for Peptide Synthesis by Prior Thiol Capture. Facile Conversion of N-Terminal Boc-L-Dmt-Peptides to H-Cys(Scm)-Peptides
Kemp, D. S.,Carey, Robert I.
, p. 3640 - 3646 (2007/10/02)
An efficient, convenient preparation of N-L-(tert-butyloxycarbonyl)-2,2-dimethylthiazolidine-4-carboxylic acid (Boc-Dmt-OH) is reported.The following rate constants assess the coupling efficiency and racemization risk of Boc-L-Dmt-OC6F5 in THF at 22 deg C.With H-Val-OMe, kcouple = 3.2*10-2M-1s-1, and with Et3N, krac -8M-1s-1.Conversions of derivatives of the sequence Cys-Gly-Gly-Ala to the corresponding Scm-functionalized (Scm = methoxycarbonylsulfenyl, MeOCOS) cysteine peptides illustrated transformation of -Dmt- to -Cys(Scm)- with or without prior Boc cleavage.A palladium black catalyzed hydrogenolysis of a benzyl ester in the presence of the thiazolidine is reported in the solution-phase synthesis of the tripeptide Boc-Dmt-Leu-Ala-OBzl.The functionalized octapeptide 58-51 of basic pancreatic trypsin inhibitor, H-Cys(Scm)-Met-Arg-Thr-Cys(Dnp)-Gly-Gly-Ala-OH, was prepared by a 4 + 4 thiol capture and acyl-transfer strategy to demonstrate the applicability of the thiazolidine to this method.
