Metal Complexes with Macrocyclic Ligands. Part XXVI. Synthesis and spectral properties of Cu2+ complexes with mono-N-functionalized 1,4,8-trimethyl-1,4,8,11-tetraazacyclotetradecanes
作者:Daniel Tschudin、Arup Basak、Thomas A. Kaden
DOI:10.1002/hlca.19880710112
日期:1988.2.3
3–14 were synthesized by alkylating the secondary N-atom of the macrocycle 1. The spectral properties of the Cu2+ complexes, studied under different pH conditions, are discussed in relation to the possibility of coordination of the donor group of the side chain to the axial position of the metal ion and to the effect of the length of the side chain.
Metal Complexes with Macrocyclic Ligands. Part XLII. Tetraazamacrocyclic nickel(II) complexes with a methylthio or a methoxy pendant chain as model for cofactor F430
作者:Claudio L. Schmid、Christian Kempf、Andreas Taubert、Markus Neuburger、Margareta Zehnder、Thomas A. Kaden、Krzysztof Bujno、Renata Bilewicz
DOI:10.1002/hlca.19960790410
日期:1996.6.26
14-membered macrocyclicNi2+ complexes of 1 and 2, with a methylthio pendant chain, and those of 3 and 4, with a methoxy pendant chain, have been synthesized and their chemistry has been studied. Solution spectra in H2O, MeCN, and DMF indicate no participation of the side-chain donor group in metal coordination. This is also the case in the solid state as shown by the X-ray structures of the Ni2+ complexes
合成了具有甲硫基侧链的1和2的14元大环Ni 2+配合物,以及具有甲氧基侧链的3和4的14元大环Ni 2+配合物,并对其化学进行了研究。H 2 O,MeCN和DMF中的溶液光谱表明,侧链供体基团没有参与金属配位。如具有1和2的Ni 2+配合物的X射线结构所示,固态也是如此,其中Ni 2+周围呈四面体扭曲的方平面几何形状通过大环的四个N原子的配合得到结果。MeCN中这些络合物的循环伏安法显示,相对于SCE ,Ni 2+在-0.7至-0.8 V之间可逆地还原为Ni +。对于具有1和2的配合物,硫醚键在更多的负电势下裂解,从而形成硫醇基。然后该硫醇基团在约200℃被氧化。+0.7 V vs. SCE,当使用玻璃状C电极时,或在。在下降的Hg电极上为0 V vs. SCE。3和4配合物中的醚键不断裂在类似条件下观察到。在DMF中用Na-汞齐还原1和2的Ni 2+络合物仅在1的情况下会产生少量甲烷,这表明Ni
Palladium-Catalysed Amination of 1,8- and 1,5-Dichloroanthracenes and 1,8- and 1,5-Dichloroanthraquinones
derivatives of anthracene and anthraquinone have been synthesised by palladium-catalysed coupling of 1,8-dichloroanthracene and 1,8-dichloroanthraquinone with a wide range of aliphatic and aromatic primary and secondary amines. The use of polyamines gave rise to a large number of new nitrogen- and oxygen-containing macrocycles incorporating anthracene or anthraquinone moieties. The method has also been
CXCR4 INHIBITING CARRIERS FOR NUCLEIC ACID DELIVERY
申请人:Wayne State University
公开号:US20140243397A1
公开(公告)日:2014-08-28
The present invention generally relates to carriers including polymers and lipids that comprise a CXCR4 inhibiting moiety. More specifically, these carriers are biodegradable and can be bioreducible polymers that comprise a CXCR4 inhibiting moiety. These carriers can be suitable for delivery of nucleic acids to cells. These carriers and pharmaceutical compositions can be used to treat various conditions including cancers and inflammation conditions.
Optimization of the selectivity and rate of copper radioisotope complexation: formation and dissociation kinetic studies of 1,4,8-trimethylcyclam-based ligands with different coordinating pendant arms
Selectivity and rate of complex formation with metal radionuclides are crucial parameters for the utilization of ligating systems in nuclear medicine. One of the very suitable metals used in these applications is copper, which has a number of radioisotopes with useful properties. The thermodynamic and kineticproperties of Cu(II) complexes with 10 macrocyclic 1,4,8-trimethylcyclam-based ligands having
与金属放射性核素形成复合物的选择性和速率是核医学中结扎系统利用的关键参数。在这些应用中使用的非常合适的金属之一是铜,它具有许多具有有用性质的放射性同位素。在溶液中研究了具有10个具有一个配位酸侧基臂(Me 3 cyclam–R)的10,1,4,8-三甲基环己基大环配体的Cu(II)配合物的热力学和动力学性质,从而可以直接比较配合物特性的特定侧链。它们包括具有R = CH 2 CO 2 H(H L 1)的衍生物和包含各种磷酸R = CH的家族2 P(O)(OH)–X,其中X = OEt(H L 2);X = OH(H 2 L 3); X = H(H L 4); X = CH 2 CH 2 CO 2 H(H 2 L 5);X = CH 2 CH 2 CO 2 H(H 2 L 5)。X = CH 2 P(O)(H)OH(H 2 L 6); X = CH 2 P(O)(OH) 2(H 3 L 7);