• Title/Summary/Keyword: University Archives

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Synthesis and Antiviral Activity of Novel Phenyl Branched Apiosyl Nucleosides

  • Kim, Jin-Woo;Hong, Joon-Hee
    • 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.

Surgical treatment of velopharyngeal insufficiency

  • Nam, Seung Min
    • Archives of Craniofacial Surgery
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    • v.19 no.3
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    • pp.163-167
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    • 2018
  • Velopharyngeal insufficiency (VPI) is a common complication after primary palatoplasty. Although the several surgical treatments of VPI have been introduced, there is no consensus guide to select the optimal surgical treatment for VPI patients. The selection of surgical treatment for VPI depends on a multimodal patient evaluation, such as perceptual speech evaluation, nasometery and nasoendoscopy. We can provide more adequate treatment for VPI through the deeper understanding of anatomy and physiology in VPI.

A Convenient Synthesis of an Anti-Helicobacter Pylori Agent, Dehydrodiconiferyl Alcohol

  • Hu, Kun;Jeong, Jin-Hyun
    • Archives of Pharmacal Research
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    • v.29 no.7
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    • pp.563-565
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    • 2006
  • Potential anti-Helicobacter pylori agent dehydrodiconiferyl alcohol was synthesized in 44% overall yield, starting from vanillin which could be commercially available. Carbon extension of vanillin followed by the Horner-Wadsworth-Emmons reaction, a biomolecular radical coupling reaction and DIBAL-H reduction gave dehydrodiconiferyl alcohol.

Inhibitory Effect of Papaverine on the Contraction Induced by Transmural Stimulation in the Isolated Mouse Vas Deferens

  • Park, Eun-Hee;Song, Yoon-Sun
    • Archives of Pharmacal Research
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    • v.15 no.2
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    • pp.134-137
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    • 1992
  • The effect of papaverine on the contractions induced by adrenergic neurotransmission in the isolated mouse vas deferens was investigated. Papaverine, $10^{-7}-10^{-5}$M, showed a dose-dependent and reversible inhibition on the induced contractions. When the frequency of stimulation was varied (2.5-20.0 Hz), the inhibitory effect tended to be marked at the lower frequencies.

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Triterpenoids from Rubi Fructus (Bogbumja)

  • Kim, Young-Hee;Kang, Sam-Sik
    • Archives of Pharmacal Research
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    • v.16 no.2
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    • pp.109-113
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    • 1993
  • The dried unnipe fruits of Rubus sp. (Rubi Fructus, Bogabunja) have yielded $\beta$-sitosterol glucoside and four urs 12 en-28-oic acid derivatives, three of which were as their glucosiders. They were identified as 23-hydroxytomentic acid, rosamultin, niga-ichigosides $F_1\;and\;F_2$ on the basis of spectral data.

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A New Guaiane type Sesquiterpene from Torilis japonica

  • Ryu, Jae-Ha;Jeong, Yeon-Su
    • Archives of Pharmacal Research
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    • v.24 no.6
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    • pp.532-535
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    • 2001
  • A new guaiane type sesquiterpene was isolated from the fruit of Torilis japonica (Umbelliferae). Based on NMR, IR and mass spectroscopy its structure was confirmed as deangeloyloxy torilin, $1{\beta},{\;}7{\alpha},{\;}10{\alpha}$H-11-acetoxy-guaia-4-en-3-one (1). This is the first report showing that this compound can be isolated from Torilis japonica.

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Synthesis and Antitubercular Activity of 6-Chloro (Unsubstituted)- 2-Methoxy-9-Substituted Acridine Derivatives

  • Aly, Enayat I.;Abadi, Ashraf H.
    • Archives of Pharmacal Research
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    • v.27 no.7
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    • pp.713-719
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    • 2004
  • Several analogues of the general formulae 2-methoxy-9-substituted acridine and 6-chloro-2-methoxy-9-substituted acridine were synthesized and evaluated in vitro at 6.25 $\mu\textrm{g}$/mL against M. tuberculosis $H_{37}Rv$. Compounds 15 and 17 showed potential antitubercular activity with 100% inhibition to the virulent mycobacterium.

Mechanism Studies on the CSI Reaction with Allyl Ethers by Varying p-Substituent

  • Jung, Young-Hoon;Kim, Ji-Duck
    • Archives of Pharmacal Research
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    • v.26 no.9
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    • pp.667-678
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    • 2003
  • We examined the effect of p-substituents in p-substituted cinnamyl methyl ethers and 1-(p-substituted phenyl)allyl methyl ethers with CSI, and confirmed that the CSI reaction of allyl ethers (p-substituted ethers) is a competitive reaction of $S_Ni{\;}and{\;}S_N1$ mechanism according to the stability of the carbocation. And, the only terminal allylic amine was obtained through the migration reaction in thermodynamic reaction condition.

A New 24-Nor-Lupane-Glycoside of Acanthopanax trifoliatus

  • Kiem, Phan-Van;Minh, Chau-Van;Cai, Xing-Fu;Lee, Jung-Joon;Kim, Young-Ho
    • Archives of Pharmacal Research
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    • v.26 no.9
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    • pp.706-708
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    • 2003
  • A new 24-nor-lupaneglycoside was isolated from the leaves of Acanthopanax trifoliatus. Based on spectroscopic data its chemical structure was determined as 24-nor-11$\alpha$-hydroxy-3-oxo-lup-20(29)-en-28-oic acid 28-Ο-$\alpha$-L-rhamnopyranosyl-(1$\rightarrow4)-\beta-D-glucopyranosyl-(1\rightarrow6)-\beta$-D-glucopyranosyl ester.