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Bénédicte Dayde Claire Pierra Gilles Gosselin Dominique Surleraux Amadou Tidjani Ilagouma Jean-Noël Volle David Virieux Jean-Luc Pirat 《Tetrahedron letters》2014
This Letter describes the synthesis of racemic analogues of unnatural 2′-deoxy nucleoside with a phosphorus atom replacing the carbon atom in the 3′-position. A seven-step sequence was developed in racemic series to afford unnatural 3′-phospha-2′-deoxyfuranose nucleosides. The phospha nucleoside analogues were tested against HCV, but did not show any antiviral activity at a 10 μM maximum concentration used for the inhibition assays of analogues 2-T, 2-C and 4-Tα. 相似文献
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In recent times,nanoparticles(NPs)have received intense attention not only due to their potential applications as a candidate for drug delivery,but also because of their undesirable effects on human health.Although extensive experimental studies have been carried out in literature in order to understand the interaction between NPs and a plasma membrane,much less is known about the molecular details of the interaction mechanisms and pathways.As complimentary tools,coarse grained molecular dynamics(CGMD)and dissipative particle dynamics(DPD)simulations have been extensively used on the interaction mechanism and evolution pathway.In the present review we summarize computer simulation studies on the NP-membrane interaction,which developed over the last few years,and particularly evaluate the results from the DPD technique.Those studies undoubtedly deepen our understanding of the NP-membrane interaction mechanisms and provide a design guideline for new NPs. 相似文献
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Hu Pan Renpeng Yan Xudong Li Xin Fa Yufei Ma Rongwei Fan Xin Yu Deying Chen 《Journal of Russian Laser Research》2016,37(3):259-264
We present a compact high-peak-power, high-repetition-rate burst-mode laser from a master-oscillator power amplifier (MOPA) at 1064 nm for laser-based measurement applications. The oscillator is an 808 nm pulsed laser diode side-pumped acousto-optical (A-O) Q-switched Nd:YAG laser at repetition rates ranging from 10–100 kHz, producing a pulse train with a pulse number of 2–25. The maximum output energy of the oscillator is 15.6 mJ at 10 kHz, whereas it is 1.7 mJ at 100 kHz. After twostage amplifiers, a single-pulse energy of 85.2 mJ with a pulse-width of 14.5 ns is achieved at 10 kHz, which produces a peak power of 6.1 MW. At 100 kHz, the total burst energy reaches 220 mJ with a single-pulse energy of 8.8 mJ in the pulse burst laser system. 相似文献
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Metal‐Triflate‐Catalyzed Synthesis of Polycyclic Tertiary Alcohols by Cyclization of γ‐Allenic Ketones 下载免费PDF全文
Ilhem Diaf Dr. Gilles Lemière Dr. Elisabet Duñach 《Angewandte Chemie (International ed. in English)》2014,53(16):4177-4180
It has been established that bismuth(III) triflate catalyzes the cyclization of γ‐allenic ketones under mild reaction conditions. This reaction allows the selective formation of polycyclic tertiary alcohols from cyclic ketone derivatives. The resulting dienols can engage in stereoselective cycloadditions to efficiently afford complex polycyclic systems. 相似文献