Synthesis of phosphinate analogues of the phospholipid anti-tumour agent hexadecylphosphocholine (miltefosine)
摘要:
Efficient synthesis of phosphinate analogues (in six steps and 68-69% overall yields) of the anti-tumour agent miltefosine are reported, which involve a radical hydrophosphinylation addition reaction followed by conversion to the P(III) silyloxy intermediate and Michael-type addition as the key steps. (C) 2011 Elsevier Ltd. All rights reserved.
Nucleosidereversetranscriptase inhibitors (NRTIs) are widely used as antiviral and anticancer agents, although they require intracellular phosphorylation into their antivirally active form, the triphosphorylated nucleosideanalogue metabolites. We report on the synthesis and characterization of a new class of nucleosidetriphosphateanalogues comprising a C-alkyl-phosphonate moiety replacing the
Pronucleotides of 2′,3′-Dideoxy-2′,3′-Didehydrothymidine as Potent Anti-HIV Compounds
作者:Xiao Jia、Dominique Schols、Chris Meier
DOI:10.1021/acs.jmedchem.3c00755
日期:2023.9.14
three different nucleotide prodrug systems: (i) nucleoside triphosphate analogues in which the γ-phosph(on)ate has two different lipophilic nonbioreversible alkyl residues with d4TDP as the released nucleotide analogue; (ii) nucleoside diphosphate analogues bearing a bioreversible and a stable β-alkyl group; or (iii) nucleoside diphosphate analogues bearing two nonhydrolysable lipophilic alkyl moieties
我们报告了三种不同的核苷酸前药系统的合成和评估:(i)核苷三磷酸类似物,其中γ-磷酸酯具有两个不同的亲脂性非生物可逆烷基残基,以d4TDP作为释放的核苷酸类似物;(ii) 带有生物可逆且稳定的β-烷基的核苷二磷酸类似物;或(iii)带有两个不可水解的亲脂性烷基部分的核苷二磷酸类似物。CD4 + T 淋巴细胞 CEM 细胞提取物以及磷酸盐缓冲盐水 (PBS) 中证明了 d4TDP(三磷酸前体)和 d4TMP(二磷酸前体)的递送。在引物延伸实验中,我们发现γ-二烷基化d4TTP衍生物和d4TDP被HIV-RT接受为底物。其中一些化合物被发现对 HIV 感染细胞中的 HIV-1/2 复制具有极强的活性。与母体 d4T 相比,检测到化合物18a的抗 HIV 活性增加了 45,000 倍以上,导致选择性指数值为 37,000。
Antiviral Activity of Lipophilic Nucleoside Tetraphosphate Compounds
作者:Xiao Jia、Dominique Schols、Chris Meier
DOI:10.1021/acs.jmedchem.3c02022
日期:2024.2.22
characterization of three types of nucleoside tetraphosphate derivatives 4–9 acting as potential prodrugs of d4T nucleotides: (i) the δ-phosph(on)ate is modified by two hydrolytically stable alkyl residues 4 and 5; (ii) the δ-phosph(on)ate is esterified covalently by one biodegradable acyloxybenzyl moiety and a nonbioreversible moiety 6 and 7; or (iii) the δ-phosphate of nucleoside tetraphosphate is masked by
A process for producing a polyamide constituted of a dicarboxylic acid unit comprising 80% by mol or more of an aliphatic dicarboxylic acid unit having 6 to 12 carbon atoms and a diamine unit comprising 80% by mol or more of xylylenediamine unit or bisaminomethylcyclohexane unit is disclosed herein.
The polymerization conditions are rapidly and accurately controlled by a near-infrared spectroscopy to enable the efficient production of a desired polyamide with a good stability in its quality.
QUANTUM DOT HAVING POLYMERIC OUTER LAYER, PHOTOSENSITIVE COMPOSITIONS INCLUDING THE SAME, AND QUANTUM DOT POLYMER COMPOSITE PATTERN PRODUCED THEREFROM
申请人:Samsung Electronics Co., Ltd.
公开号:EP3163372A2
公开(公告)日:2017-05-03
A photosensitive composition including a quantum dot complex having a polymeric outer layer, a carboxylic acid group-containing binder, a photopolymerizable monomer having a carbon-carbon double bond, a photoinitiator, and a solvent, wherein the polymeric outer layer includes a copolymer including a first repeating unit having a moiety capable of interacting with a surface of the quantum dot, an organic ligand compound bonded to the surface of the quantum dot, or a combination thereof, and a second repeating unit having a reactive moiety.