N-杂环卡宾(NHC)配体前体,即HIm A Cl [1,3-双(2-乙氧基-2-氧代乙基)-1 H-咪唑-3-氯化铵]和HIm B Cl {1,3-已合成了在咪唑环上被亲水基团官能化的双[2-(二乙氨基)-2-氧代乙基] -1 H-咪唑-3-氯化物},并用于合成相应的银(I)卡宾配合物和铜(I),{[Im A ] AgCl},{[Im A ] CuCl}和{[Im B ] 2 Ag} Cl。相关的Au I NHC络合物{[Im A ] AuCl}和{[Im B使用银卡宾银前体通过金属转移获得了[AuCl}。这些化合物通过包括NMR和质谱在内的几种光谱技术进行了表征。还通过X射线晶体学表征了HIm B Cl和金(I)络合物{[Im A ] AuCl}和{[Im B ] AuCl}。已在各种人类癌细胞系中评估了NHC复合物的细胞毒性,这些细胞系包括对顺铂敏感和耐药的细胞。发现银(I)络合物{[Im
N-杂环卡宾(NHC)配体前体,即HIm A Cl [1,3-双(2-乙氧基-2-氧代乙基)-1 H-咪唑-3-氯化铵]和HIm B Cl {1,3-已合成了在咪唑环上被亲水基团官能化的双[2-(二乙氨基)-2-氧代乙基] -1 H-咪唑-3-氯化物},并用于合成相应的银(I)卡宾配合物和铜(I),{[Im A ] AgCl},{[Im A ] CuCl}和{[Im B ] 2 Ag} Cl。相关的Au I NHC络合物{[Im A ] AuCl}和{[Im B使用银卡宾银前体通过金属转移获得了[AuCl}。这些化合物通过包括NMR和质谱在内的几种光谱技术进行了表征。还通过X射线晶体学表征了HIm B Cl和金(I)络合物{[Im A ] AuCl}和{[Im B ] AuCl}。已在各种人类癌细胞系中评估了NHC复合物的细胞毒性,这些细胞系包括对顺铂敏感和耐药的细胞。发现银(I)络合物{[Im
Method and composition for rejuvinating cells, tissues organs, hair and nails
申请人:——
公开号:US20020188015A1
公开(公告)日:2002-12-12
In one embodiment, the present invention relates to compounds and compositions including pharmaceutical compositions containing the compounds and associated methods that uncouple sugar-mediated coupling of proteins, lipids, nucleic acids, and other biomaterials, and any combination thereof. In another embodiment, the compositions and associated methods have utility in vivo to reduce the deleterious effects of sugar-mediated coupling processes in an organism, when the organism is exposed to the compound or composition internally, by ingestion, transdermal application, or other means. In yet another embodiment, the compositions and associated methods are useful for the ex-vivo treatment of organs, cells and tissues and external treatment of hair, nails and skin to rejuvenate them by changing deformability and increase the tissue diffusion coefficient. In a further embodiment, the present invention relates to novel compounds and pharmaceutical compositions.
Water-Soluble Iridium N-Heterocyclic Carbene Complexes for the Alkylation of Amines with Alcohols
作者:Ana Fernandes、Beatriz Royo
DOI:10.1002/cctc.201700678
日期:2017.10.23
A new series of water‐soluble Ir complexes with N‐heterocycliccarbeneligands that bear ester and amide groups has been obtained and fully characterized. The new complexes are highly reactive and selective for the alkylation of amines with alcohols with a 1:1 ratio of reactants in water and in the absence of base or other additives. The catalytic system has a broad substrate scope, which allows the
Catalytic Hydrocarbon Functionalization with Gold Complexes Containing N‐Heterocyclic Carbene Ligands with Pendant Donor Groups
作者:Manuela Delgado‐Rebollo、Álvaro Beltrán、Auxiliadora Prieto、M. Mar Díaz‐Requejo、Antonio M. Echavarren、Pedro J. Pérez
DOI:10.1002/ejic.201101158
日期:2012.3
A series of silver and goldcomplexes bearing N-heterocyclic carbeneligands with a –CH2CO2Et pendantgroup attached to one N atom of the NHC ligand have been prepared. The catalytic properties of the goldcomplexes toward the decomposition of ethyl diazoacetate (N2CHCO2Et) and the transfer of the carbene CHCO2Et group to benzene and hexane have been investigated. A somewhat different reaction outcome
Five palladium complexes featuring N-heterocycliccarbene ligands derived from sustainable precursors have been synthesized and applied in aqueousSuzuki–Miyauracouplings.