Disclosed herein are cyclic nucleotide analogs, methods of synthesizing cyclic nucleotide analogs and methods of treating diseases and/or conditions such as viral infections, cancer, and/or parasitic diseases with cyclic nucleotide analogs.
The practical synthesis of P-stereogenic tertiary phosphines, which have wide applications in asymmetric catalysis, materials, and pharmaceutical chemistry, represents a significant challenge. A regio- and enantioselective hydrophosphination using cheap and ubiquitous alkynescatalyzed by a nickelcomplex was designed, in which the toxic and air-sensitive secondary phosphines were prepared in situ
Enantioselective hydrogenation of (Z)- and (E)-β-arylenamides catalyzed by rhodium complexes of monodentate chiral spiro phosphorous ligands: a new access to chiral β-arylisopropylamines
A highly enantioselective rhodium-catalyzedhydrogenation of both (Z)- and (E)-β-arylenamides was developed by using monodentate chiral spiro phosphite and phosphine ligands, respectively. The hydrogenation reaction provides an efficient access to optically active β-arylisopropylamines, important building blocks for the synthesis of biologically active compounds.
Various possible methods for synthesis of monoalkyl phosphoroamidities, (RO)(R2′N)P(O)H, starting from tervalent or pentavalentphosphorus derivatives are described and discussed. New experimental results concerning phosphorylation of secondary amines by means of phosphorus acid anhydrides are presented.
作者:Joyram Guin、Qinggang Wang、Manuel van Gemmeren、Benjamin List
DOI:10.1002/anie.201409411
日期:2015.1.2
The first catalytic enantioselective Abramovreaction is described. The process is based on the utilization of a chiral disulfonimide catalyst, which efficiently avoids the difficulties encountered with metal‐based catalysts. Several functionalized α‐hydroxy phosphonates were synthesized in good yields and with excellent enantiomeric ratios of up to >99:1. The process was shown to be scalable and up