Synthesis of highly enantiomerically enriched amines by the diastereoselective addition of triorganozincates to N-(tert-butanesulfinyl)imines
作者:Raquel Almansa、David Guijarro、Miguel Yus
DOI:10.1016/j.tetasy.2008.10.012
日期:2008.11
different from the ones observed with the corresponding Grignardreagents, which allows, in several cases, the preparation of both enantiomers of an amine from the same imine substrate. When mixed triorganozincates are used, one can take advantage of the slow transfer rate of the methyl group to use it as a non-transferable one. Both aromatic and aliphatic aldimines, as well as activated ketimines, are good
The present invention provides compounds of formula (I):
compositions comprising such compounds; the use of such compounds in therapy (such as asthma or COPD); and methods of treating patients with such compounds; wherein R
1
-R
11
are as defined herein.
Disclosed is a method for obtaining a bifunctional complex comprising a display molecule part and a coding part wherein a nascent bifunctional complex comprising a chemical reaction site and priming site for enzymatic addition of a tag is reacted at the chemical reaction site with one or more reactants, and provided with respective tag(s) identifying the reactant(s) at the priming site using one or more enzymes.
Amine dehydrogenases: efficient biocatalysts for the reductive amination of carbonyl compounds
作者:Tanja Knaus、Wesley Böhmer、Francesco G. Mutti
DOI:10.1039/c6gc01987k
日期:——
Amines constitute the major targets for the production of a plethora of chemical compounds that have applications in the pharmaceutical, agrochemical and bulk chemical industries. However, the asymmetric synthesis of...