• Archives of Pharmacal Research
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• v.26 no.11
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• pp.887-891
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• 2003

Novel trans-2,2-dimethylcyclopropyl nucleosides were synthesized as potential antiviral agents. The key intermediate, 3, was synthesized via five steps from ethyl chrysanthemate and condensed with purine bases using the Mitsunobu reaction to give six cyclopropyl nucleosides. These synthesized nucleosides did not show any significant antiviral activity against HSV-1, HSV-2, EMCV, Cox B3, or VSV, at concentrations up to 100 $\mu M$.

• Proceedings of the Korean Society of Applied Pharmacology
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• 1993.04a
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• pp.116-116
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• 1993

전 세계적으로 문제가 되고 있는 질병인 AIDS의 원인 virus인 HIV에 활성이 있는 nucleoside 유도체를 개발하기 위해, 일반적으로 HIV에 활성이 있는 3'-deoxythymidine 유도체의 일종으로써 3'-위치에 hydroxy기 대신에 heterocyclic thio기가 치환된 3'-deoxy-3' -(pyrimidin-2-yl)thio thymidine 및 3'-deoxy-3'-(1-methyltetrazol-5-yl) thiothymidine을 thymidine을 출발물질로 각각 합성하였다. 그러나 이 두 화합물은 항 HIV-1 (CEM cell line)에 대하여 활성이 없었다.

• Archives of Pharmacal Research
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• v.18 no.5
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• pp.364-365
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• 1995

• Archives of Pharmacal Research
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• v.28 no.10
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• pp.1105-1110
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• 2005

Novel anomeric branched carbocyclic nucleosides were synthesized from 1,3-dihydroxy acetone. 4'-Hydroxymethyl was installed by [3,3]-sigmatropic rearrangement reaction and 1'-methyl group was introduced by carbonyl addition of methylmagnesium bromide. The coupling of nucleosidic bases and desilylation afforded a series of novel nucleosides. The synthesized compounds $16{\~}19$ were evaluated for their antiviral activity against HIV-1, HSV-1, HSV-2, and EMCV. Compounds 16 and 19 exhibit toxicity non-related to any anti-HIV-1 activity.

• Bulletin of the Korean Chemical Society
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• v.35 no.4
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• pp.1215-1217
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• 2014

• YAKHAK HOEJI
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• v.37 no.6
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• pp.591-597
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• 1993

Two new 6-azauracil dioxolane nucleosides which are related to Dioxolane T and expected to have anti-HIV activity were asymmetrically synthesized. The key intermediate 8 have been synthesized in ten steps from D-mannose and condensed with 6-azauracil to give 13 and 14 after desilylation, respectively.

• Proceedings of the Zoological Society Korea Conference
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• 2003.08a
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• pp.180.2-180
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• 2003

No Abstract, See Full Text

• Archives of Pharmacal Research
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• v.29 no.6
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• pp.464-468
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• 2006

Novel phenyl branched apiosyl nucleosides were synthesized in this study. The introduction of phenyl group in the 4'-position was accomplished by a [3,3]-sigmatropic rearrangement. Apiosyl sugar moiety was constructed by sequential ozonolysis and reductions. The natural bases (cytosine and adenine) were efficiently coupled with an apiosyl sugar by classical glycosyl condensation procedure (persilyated base and TMSOTf). The antiviral activities of the synthesized compounds were evaluated against the HIV-1, HSV-1, HSV-2 and HCMV.

• Archives of Pharmacal Research
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• v.26 no.9
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• pp.679-685
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• 2003

A series of novel cyclopropyl nucleosides was synthesized using the highly stereoselective Simmons-Smith reaction starting from 1,2:5,6-di-Ο-isopropylidene-D-mannitol. The structural assignments of these nucleosides were determined by NMR studies and X-ray crystallography. All the synthesized nucleosides were assayed against several viruses.

• Proceedings of the PSK Conference
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• 2003.04a
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• pp.242.1-242.1
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• 2003

The nucleoside analogue, L-FMUS was synthesized from L-FMAU which has been shown to have significant antiviral activity against hepatitis B virus (HBV). It was prepared by two steps. First, 5'hydroxyl of L-FMAU was substituted by thioacetyl group using diisopropylazodicarboxylate(DIAD), Triphenyl phosphine(PPh3) and thioacetic acid in anhydrous THF. (omitted)