Deshalogenation d'halogeno-1methyl-2naphtalenes et d'halogeno-1 trimethyl-2,4,6 苯。关于 obtient des produits de telesubstitution 的 cote des produits de dehalogenation。二叔丁基过氧化物的影响
transformed into tritium labelled compounds by metal-mediated hydrodehalogenation and also react in a number of important synthetic transformations. We present ICl/In(OTf)3 as a new reagent combination for mild iodination, suitable for acid-sensitive substrates such as carbohydrates.
[EN] TYROSINE KINASE INHIBITOR CONJUGATES<br/>[FR] CONJUGUÉS INHIBITEUR DE TYROSINE KINASE
申请人:ASCENDIS PHARMA ONCOLOGY DIV A/S
公开号:WO2020254609A1
公开(公告)日:2020-12-24
The present invention relates to a tyrosine kinase inhibitor ("TKI") conjugate or a pharmaceutically acceptable salt thereof, wherein said conjugate comprises a plurality of TKI moieties -D covalently conjugated via at least one moiety -L1 -L2 - to a polymeric moiety Z, wherein -L - is covalently and reversibly conjugated to -D and -L2 - is covalently conjugated to Z and wherein -L1- is a linker moiety and -L2- is a chemical bond or a spacer moiety; and to related aspects.
[EN] CONJUGATES OF PATTERN RECOGNITION RECEPTOR AGONISTS<br/>[FR] CONJUGUÉS D'AGONISTES DU RÉCEPTEUR DE RECONNAISSANCE DE MOTIF
申请人:ASCENDIS PHARMA AS
公开号:WO2020141221A1
公开(公告)日:2020-07-09
The present invention relates to a conjugate or its pharmaceutically acceptable salt, wherein said conjugate is water-insoluble and comprises a carrier moiety Z to which one or more moieties -L2-L1-D are conjugated, wherein each -L2- is individually a chemical bond or a spacer moiety; each -L1- is individually a linker moiety to which -D is reversibly and covalently conjugated; and each -D is individually a pattern recognition receptor agonist. It further relates to pharmaceutical compositions comprising such conjugate and to their use in the treatment of cell-proliferation disorders; and to related aspects.
The present invention provides an activator in arylamination using a palladium compound as a catalyst, which is superior to conventional phosphines in stability and performance. With the phosphine sulfide as an activator, an arylamination reaction achieves improved selectivity to produce a desired aromatic amine in an obviously increased yield as compared with a reaction using the corresponding phosphine compound. Moreover, the phosphine sulfide of the invention is impervious to oxidation and exists stably in air and therefore sufficiently withstands use on an industrial scale.
Transition-Metal-Free Decarboxylative Iodination: New Routes for Decarboxylative Oxidative Cross-Couplings
作者:Gregory J. P. Perry、Jacob M. Quibell、Adyasha Panigrahi、Igor Larrosa
DOI:10.1021/jacs.7b05155
日期:2017.8.23
its application to oxidative cross-couplings of aromatics via decarboxylative/C–H or double decarboxylative activations that use I2 as the terminal oxidant. This strategy allows the preparation of biaryls previously inaccessible via decarboxylative methods and holds other advantages over existing decarboxylative oxidative couplings, as stoichiometric transition metals are avoided.