reagents and solvents. In this context, 3-(diethylamino)propylamine (DEAPA) was identified to be a viable alternative to piperidine for Fmoc removal. In addition, the use of DEAPA in N-octyl-pyrrolidone (manual synthesis) or N-octyl pyrrolidone/dimethyl carbonate 8/2 v/v (automated synthesis) was proved to be able to minimize the formation of side products like diastereoisomers and aspartimide-containing
Improved efficiency and selectivity in peptide synthesis: Use of triethylsilane as a carbocation scavenger in deprotection of t-butyl esters and t-butoxycarbonyl-protected sites
作者:Anita Mehta、Rabih Jaouhari、Timothy J. Benson、Kenneth T. Douglas
DOI:10.1016/s0040-4039(00)79116-7
日期:1992.9
triethylsilane as a carbocation scavenger in the presence of trifluoroacetic acid in dichloromethane leads to increased yields, decreased reaction times, simple work-up and improved selectivity for the deprotection of t-butyl ester and t-butoxycarbonyl sites in protected amino-acids and peptides in the presence of otheracid-sensitiveprotectinggroups such as the benzyloxycarbonyl, 9-fluorenylmethoxycarbonyl
Discovery of Glutathione S-Transferase Inhibitors Using Dynamic Combinatorial Chemistry
作者:Baolu Shi、Ross Stevenson、Dominic J. Campopiano、Michael F. Greaney
DOI:10.1021/ja058049y
日期:2006.7.1
Protein-directed dynamiccombinatorialchemistry (DCC) relies on reversible chemical reactions that can function under the near-physiological conditions required by the biological target. Few classes of reaction have so far proven effective at generating dynamiccombinatorial libraries (DCLs) under such constraints. In this study, we establish the conjugate addition of thiols to enones as a reaction