نتایج جستجو برای: 2 their activities

تعداد نتایج: 4528959  

Journal: :Antimicrobial agents and chemotherapy 2007
Hyunah Choo James R Beadle Earl R Kern Mark N Prichard Kathy A Keith Caroll B Hartline Julissa Trahan Kathy A Aldern Brent E Korba Karl Y Hostetler

Three acyclic nucleoside phosphonates are currently approved for clinical use against infections caused by cytomegalovirus (Vistide), hepatitis B virus (Hepsera), and human immunodeficiency virus type 1 (Viread). This important antiviral class inhibits viral polymerases after cellular uptake and conversion to their diphosphates, bypassing the first phosphorylation, which is required for convent...

Journal: :Nucleic acids research 1991
Y Kitade Y Nakata K Hirota Y Maki A Pabuccuoglu P F Torrence

8-Methyladenosine-substituted analogues of 2-5A, p5'A2'p5'A2'p5'(me8A), p5'A2'p5'(me8A)2'p5'(me8A), p5'(me8A)2'p5'(me8A)2'p5'(me8A), and p5'(me8A) 2'p5'A2'p5'A, were prepared via a modification of a lead ion-catalyzed ligation reaction. These 2-5A monophosphates were converted into the corresponding 5'-triphosphates. Substitution of an 8-methyladenosine residue at the third position (2'-terminu...

Journal: :Molecules 2011
Pi Cheng Qiong Gu Wei Liu Jian-Feng Zou Yang-Yong Ou Zhong-Yong Luo Jian-Guo Zeng

Based on an established common pharmacophore of HIV-1 non-nucleoside reverse transcriptase inhibitors (NNTTIs), a series of quinolin-2-one derivatives were synthesized and assayed for their in vitro activities against HIV-1 reverse transcriptase (RT) for the first time. Some of the tested compounds were active against HIV-1 RT. Compounds 4a2 and 4d2 showed inhibitory activities with IC(50) valu...

Journal: :Antimicrobial agents and chemotherapy 2002
Rosanna Maccari Rosaria Ottanà Francesca Monforte Maria Gabriella Vigorita

As a result of our search for new isoniazid derivatives with extended spectra of activity, we evaluated the in vitro antimycobacterial activities of isonicotinohydrazides (compounds 2) and their cyanoborane adducts (compounds 3), both obtained by the reaction of isonicotinoylhydrazones (compounds 1) with sodium cyanoborohydride. Most of the tested compounds displayed moderate to high activity a...

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