Chiral diamides [(2S)-5-oxo-2-(arylamino)carbonylpyrrolidines] derived from the abundantly available (S)-glutamic/(S)-pyroglutamic acids were successfully utilized as effective chiral catalytic precursors in the borane-mediated asymmetric reduction of prochiral ketones in refluxing toluene, to provide the corresponding secondary alcohols with up to 91% enantiomeric purities. (c) 2007 Elsevier Ltd. All rights reserved.
Investigation of 2-oxopyrrolidine 5-carboxylic acid amides derivatives as potential anti-tubercular agents based on the similarity screening results from molecular fingerprints and swiss similarity
作者:Nagasree, K. P.、Umarani, W. A.、Sony, K. P. K.、Kumar, K. S.、Murali Krishna Kumar, M.
DOI:10.56042/ijc.v62i1.70391
日期:——
Synthesis and application to asymmetric allylic amination of substituted monodonor diazaphospholidine ligands
作者:Christopher W Edwards、Mark R Shipton、Nathaniel W Alcock、Howard Clase、Martin Wills
DOI:10.1016/s0040-4020(03)01062-7
日期:2003.8
The synthesis of a series of substituted monodonor diazaphospholidine ligands is described. A regioselective lithiation process is a key step in one of these syntheses. The compounds are designed to be incorporated into soluble polymer and other solid phase supports. Enantiomeric excesses of up to 88% were observed when these compounds were employed in palladium-catalysed asymmetric amination reactions