• 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.

• Bulletin of the Korean Chemical Society
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• v.13 no.6
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• pp.654-658
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• 1992

Photolysis of 1-phenyl-1,3,5-hexatriynes in deaerated tetrahydrofuran gave photoreduction and photoaddition products, while photolysis of 1-phenyl-1,3,5-hexatriynes in deaerated alcoholic solvents (methanol, i-propanol) yielded dark red products, probably oligomers or decomposition products of reactants, as exclusive major products. A plausible mechanism for the reaction is proposed.

• Proceedings of the PSK Conference
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• 2003.10b
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• pp.175.3-175.3
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• 2003

2-Phenyl-1, 8-naphthyridin-4-ones had been synthesized for their cytotoxic activity. Substituted acetophenone was treated with NaH and diethyl carbonate to give ethyl benzoylacetates, which was reacted with substituted 2-aminopyridine and PPA to yield 2-phenylpyridopyrimidine-4-ones. These compounds was heated at $350^\times$C in liquid paraffin to afford final compounds, 2-phenyl-1 , 8-naphthyridin-4-ones.

• Proceedings of the PSK Conference
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• 2002.10a
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• pp.356.2-356.2
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• 2002

The structure of 1-phenyl-2-substituted thiourea derivatives have been studied and optimized for their cytotoxic activity. The three dimensional quantitative structure activity relationship (3D-QSAR) was investigated using comparative molecular field analysis (CoMFA). The result suggested that electrostatic and steric factors of 2-alkylureido-1-phenyl propanol derivatives were correlated well with cytotoxic activity. (omitted)

• Journal of the Korean Institute of Electrical and Electronic Material Engineers
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• v.14 no.10
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• pp.845-849
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• 2001

The new phto-alignment material PMI5CA, poly{N-(phenyl)maleimide-co-3-[4-(pentyloxy) cinamate]porpyl-2-hydroxy-1-methacrylate}, was synthesized and the electro-optical (EO)characteristics in the vertical-aligned(VA) liquid crystal display (LCD) photo-aligned on the photopolymer surface were studied. Excellent Voltage-transmittance(V-T) characteristics in the VA-LCD photoaligned with polarized UV exposure of oblique direction on the pohotopolymer surface for 1 min can be achieve. The transmittance of the VA-LCD photoaligned on the photopolymer surface decreased with increasing UV exposure time. We suggest that decrease of transmittance in the VA-LCD photoaligned on the photopolymer surface is attributed to the dissociation of the ester linkage in the photodimerized cinnamate structure with increasing UV exposure time.

• Journal of the Korean Institute of Electrical and Electronic Material Engineers
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• v.15 no.3
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• pp.264-268
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• 2002

Three types of polymer, a photoalignment material based N- (phenol)maleimide were synthesized and the liquid crystal (LC) aligning capabilities on the photopolymer layer were studied. A good LC alignment with UV exposure on the PMI5CA(N-(phenol)maleimide with 5-carbon chain cinnamoyl group) can be obtained. However, the LC alignment defects were observed on the PM13CA (N-(phenol)maleimide with 3-carbon chain cinnamoyl group) and PMIF (N-(phenyl)maleimide including fluoro cinnamoyl group). Also, the good LC alignment with UV exposure on the PM15CA surface was observed at until $150^{\circ}C$ of annealing temperature. The LC aligning ability on the photopolymer layer based N-(phenol)maleimide depends on the side chain length of photopolymer.

• Bulletin of the Korean Chemical Society
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• v.31 no.8
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• pp.2337-2340
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• 2010

A series of new 6-aryl-3-(3,4-dimethoxy-phenyl)-2-phenylsulfanyl-imidazo[2,1-b]-thiazole (5a-c) and 6-aryl-2-benzenesulfonyl-3-(3,4-dimethoxy-phenyl)imidazo[2,1-b]- thiazole (6a-c) have been prepared and characterized by analytical and spectral methods. The title compounds 5a-c and 6a-c were obtained by the reaction of 4-(3,4-dimethoxy-phenyl)-5-phenylsulfanyl-thiazol-2-ylamine (3) and 5-benzenesulfonyl-4-(3,4-dimethoxy -phenyl)thiazol-2-ylamine (4) with various phenacyl bromides in anhydrous ethanol. These newly synthesized compounds (5a-c and 6a-c) were screened for their anthelmintic and anti-inflammatory activities, where they have displayed better activities.

• Journal of Korea Foresty Energy
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• v.18 no.1
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• pp.17-24
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• 1999

This study was conducted to examine the change in the structure of the lignin during liquefaction of kraft pulp lignin in Pinus korainsis and lignin sulfonic acid. The lignin liquefied compounds were extracted with chloroform from aqueous, liquefied lignins. Through the examination by IR, H($^{13}$C) - NMR and GC-MS spectrometers, phenolic compounds such as diguaiacol, acetic acid phenyl ester, phenol, 1-phenyl ethanone were identified with many of unknown phenolic compounds.

• Journal of the Korean Chemical Society
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• v.38 no.5
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• pp.382-390
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• 1994

New 6-imino-5H-benzimidazo[2,1-b][1,3,5]benzothiadiazepine derivatives (8) were successfully synthesized in good yields from the N-[2-(benzimidazol-2-yl thio)phenyl]thiourea derivatives (6) in the presence of dicyclohexylcarbodiimide(DCC) and from N-[2-(benzimidazol-2-yl thio)phenyl]-S-methylisothiourea derivatives (7) with potassium carbonate.

• Applied Chemistry for Engineering
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• v.7 no.4
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• pp.633-638
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• 1996

The phenyl modified silicone polymer, 1,1-diphenyl-1-methyl-7-hydroxydodecamethylheptasiloxysilane, was synthesized to prepare the silicone polymer with good cold-proof and heart-proof properties. From the TGA analysis in the range of $100{\sim}800^{\circ}C$, the phenyl modified silicone polymer had good thermal properties than polydimethylsiloxane. And furthermore fluidity was maintained even below $0^{\circ}C$. Also, the silicone rubber blended with the phenyl modified silicone polymer had better mechanical properties than the silicone rubber.