The present invention relates to nucleoside diphosphate mimics and nucleoside triphosphate mimics, which contain diphosphate or triphosphate moiety mimics and optionally sugar-modifications and/or base-modifications. The nucleotide mimics of the present invention, in a form of a pharmaceutically acceptable salt, a pharmaceutically acceptable prodrug, or a pharmaceutical formulation, are useful as antiviral, antimicrobial, and anticancer agents. The present invention provides a method for the treatment of viral infections, microbial infections, and proliferative disorders. The present invention also relates to pharmaceutical compositions comprising the compounds of the present invention optionally in combination with other pharmaceutically active agents.
Nitrogen-15 and oxygen-17 NMR studies of the proton binding sites in imidodiphosphate, tetraethyl imidodiphosphate, and adenylyl imidodiphosphate
作者:Mark A. Reynolds、John A. Gerlt、Peter C. Demou、Norman J. Oppenheimer、George L. Kenyon
DOI:10.1021/ja00359a018
日期:1983.10
Pour resoudre le probleme de la structure dupont P-N-P dans l'adenylyl-5p imidophosphate (AMP-PNP) en solution aqueuse, on utilise a la fois la spectrometrie RMN de 15 N et 17 O pour determiner le site de liaison du proton
倾倒问题结构杜邦 PNP dans l'adenylyl-5p 亚胺磷酸盐 (AMP-PNP) en 溶液 aqueuse,在使用 la fois la spectrometrie RMN de 15 N et 17 O 倾倒确定器 le site de liaison du proton
Room Temperature Inorganic “Quasi‐Molten Salts” as Alkali‐Metal Electrolytes
作者:K. Xu、S. Zhang、C. A. Angell
DOI:10.1149/1.1837251
日期:1996.11.1
comparably conducting liquid can be made using in place of . Unlike their organic counterparts based on ammonium cations (e.g., pyridinium or imidazolium) which reduce in the presence of alkalimetals, this inorganic class of cation shows great stability against electrochemical reduction (ca. ‐1.0 V vs. /Li), with the useful consequence that reversible lithium and sodium metal deposition/stripping can
通过路易斯酸与磺酰氯反应制备了具有高离子电导率的室温无机液体。目前该机制尚不清楚,因为对 1:1 配合物 (Tm = 30°C) 的晶体结构研究与简单的氯化物转移以产生阴离子不一致。液体处于“离子”和“分子”之间的某种状态。采用了一个新术语“准熔盐”来描述这种状态。可以使用 代替 制成导电性相当的液体。与基于铵阳离子(例如吡啶鎓或咪唑鎓)的有机对应物不同,它们在碱金属存在下会还原,这种无机阳离子对电化学还原表现出很强的稳定性(ca. ‐1.0 V vs. /Li),具有可支持可逆锂和钠金属沉积/剥离的有用结果。这些准盐的电化学“窗口”范围高达 5.0 V,其室温电导率超过 10-4 S/cm。它们在 100°C 下溶解四氯铝酸锂和钠的摩尔分数高达 ~0.6,中间组合物在环境下永久稳定。所得锂盐或钠盐溶液的电化学窗口为 4.5 ~ 5.0 V vs. /Li 或 /Na,室温电导率为 . 在初步的充电/放电测试中,电池
Optimized synthesis and mechanism of formation of 2,4-dichloro-1,3-bis(dichlorophosphoryl)-2,4-dioxocyclodiphosph(V)azane from phosphoryl chloride and ammonium chloride
作者:Roger De Jaeger、David R. Taylor
DOI:10.1039/dt9800000851
日期:——
procedure for isolation of the main product, the novel title cyclodiphosph(V)azane, and permitted the identification of three other reaction products, namely, pyrophosphoryl chloride, hexachlorocyclotriphosph(V)azene, and PPP-trichloro-N-dichlorophosphorylmonophosph(V)azene. A reaction mechanism is proposed which accounts for the formation of all four products.