Design, Synthesis, and Evaluation of a New Generation of Modular Nucleophilic Glycine Equivalents for the Efficient Synthesis of Sterically Constrained α-Amino Acids
作者:Trevor K. Ellis、Hisanori Ueki、Takeshi Yamada、Yasufumi Ohfune、Vadim A. Soloshonok
DOI:10.1021/jo0616198
日期:2006.10.1
A new generation of modular achiral glycine equivalents have been evaluated with respect to their synthetic utility for the production of tailor-made, sterically constrained α-amino acids, which proved to be the most efficient approach developed to date for the synthesis of symmetrical α,α-disubstituted-α-amino acids. Among the new series of achiral glycine equivalents, one was found to be a superior
New generation of nucleophilic glycine equivalents
作者:Trevor K. Ellis、Hisanori Ueki、Vadim A. Soloshonok
DOI:10.1016/j.tetlet.2004.12.050
日期:2005.2
A new generation of nucleophilic glycine equivalents, designed to contain a functional framework, that allows control over the physical properties as well as the reactivity, is described. The reactivity of these nucleophilic glycine equivalents have been compared to previously described examples with the application of various transformations such as alkyl halide alkylations, Michael additions, and aldol condensations. (C) 2004 Elsevier Ltd. All rights reserved.
Highly diastereoselective synthesis of new, carbostyril-based type of conformationally-constrained β-phenylserines
作者:Hisanori Ueki、Trevor K Ellis、Masood A Khan、Vadim A Soloshonok
DOI:10.1016/s0040-4020(03)01172-4
日期:2003.9
prearranged carbonyl and glycine moieties, under strongly basic conditions easily undergo complete and highlydiastereoselective cyclization, affording a generalized and practical access to the conformationally constrained phenylserine derivatives 4. High chemical yields, virtually complete diastereoselectivity combined with the operational convenience of the experimental procedures render this method useful