This report discloses the photochemical homolytic cleavage of iodine azide after its formation following release from polymer‐bound bisazido iodate(I) anions. A series of radical reactions are reported including the 1,2‐functionlization of alkenes and the unprecedented chemoselective oxidation of secondary alcohols in the presence of primary alcohols.
Methylene C(sp<sup>3</sup>)–H β,β′-Diarylation of Cyclohexanecarbaldehydes Promoted by a Transient Directing Group and Pyridone Ligand
作者:Sahra St John-Campbell、Andrew J. P. White、James A. Bull
DOI:10.1021/acs.orglett.0c00124
日期:2020.3.6
A hindered β-amino amide transient directing group effects di-trans-arylation of cyclohexanecarbaldehydes. The amide N-substituents are shown to affect yield and can enhance the rate of arylation compared with the α-amino acid. Addition of a pyridone ligand further enhanced reactivity. The reaction is successful for a range of aryl iodides, and various substituted cyclohexane carboxaldehydes, providing
This disclosure concerns novel compounds of Formula (I) as defined in the specification and compositions comprising such novel compounds. These compounds are useful antiviral agents, especially in inhibiting the function of the NS5A protein encoded by Hepatitis C virus (HCV). Thus, the disclosure also concerns a method of treating HCV related diseases or conditions by use of these novel compounds or a composition comprising such novel compounds.
[EN] PARTICLES CONTAINING BRANCHED POLYMERS<br/>[FR] PARTICULES CONTENANT DES POLYMÈRES RAMIFIÉS
申请人:UNIV LIVERPOOL
公开号:WO2016009227A1
公开(公告)日:2016-01-21
Particles comprising a branched polymer and either a block copolymer or a linear dendritic hybrid represent a category of useful materials. They may be used in for example drug delivery applications. They may be prepared by a method comprising the steps of: dissolving the branched polymer and block copolymer or linear dendritic hybrid, and optionally other component(s),in a solvent to form a solution; adding said solution to a different liquid; and removing said solvent to form a dispersion of co-precipitated particles.
[EN] BRANCHED POLYESTER CARRYING DENDRONS<br/>[FR] POLYESTER RAMIFIÉ PORTANT DES DENDRONS
申请人:UNIV LIVERPOOL
公开号:WO2017118842A1
公开(公告)日:2017-07-13
Branched polyesters carrying dendrons are a useful class of nanomaterials which exhibit good handling properties and stability, can degrade to a high extent, and are effective encapsulation materials. They can be used to make nanoprecipitated particles which may for example be used in therapy. Furthermore, these materials can be synthesised by economical and tailorable processes. The materials can be prepared by the ring-opening polymerisation (ROP) of monofunctional lactone monomers and difunctional lactone monomers, using dendron initiators.