- Thio-heterocylic naphthalimides with aminoalkyl side chains: Novel alternative tools for photodegradation of genomic DNA without impairment on bioactivities of proteins
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Thio-heterocylic naphthalimides (R1-R5) were designed, synthesized and evaluated as nonmetallic and long-wavelength photocleavers. Some of them showed highly efficient abilities in the degradation of plasmid and genomic DNA under the mild conditions witho
- Yang, Qing,Qian, Xuhong,Xu, Jianqiang,Sun, Yuanshe,Li, Yonggang
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- Novel naphthalimide hydroperoxide photonucleases: The role of thiocyclic-Fused area and the difference in spectra, photochemistry and photobiological activity
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Novel five- and six-membered thiocyclic-fused naphthalimide hydroperoxides (7, 8) as photonucleases were designed, synthesized via unusual isomerization in Pschorr cyclization and photooxygenation. The five-membered 7 was able to induce single-strand nick
- Xu, Yufang,Qian, Xuhong,Yao, Wei,Mao, Ping,Cui, Jingnan
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- Highly-efficient DNA photocleavers with long wavelength absorptions: Thio-heterocyclic fused naphthalimides containing aminoalkyl side chains
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Thio-heterocyclic fused naphthalimides with aminoalkyl side chains were designed, synthesized and evaluated. These compounds have long wavelength absorptions and binding affinities to Calf thymus DNA. They could photodamage supercoiled pBR322 DNA from for
- Qian, Xuhong,Li, Yonggang,Xu, Yufang,Liu, Yan,Qu, Baoyuan
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Read Online
- Plastic colorant fluorescent yellow 3G and preparation method thereof (by machine translation)
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The invention belongs to the technical field of plastic colorants, and particularly relates to a plastic colorant fluorescent yellow 3G and a preparation method thereof. The plastic colorant fluorescent yellow 3G benzothiazole dicarboxylic acid anhydride and cyclohexylamine, benzothiazole dicarboxylic acid anhydride and cyclohexylamine are in a molar ratio 0.8 - 1.2: 1. The preparation method of the plastic colorant fluorescent yellow 3G comprises the following steps of 1) condensation, adding benzothiazole dicarboxylic anhydride and cyclohexylamine into a condensation kettle in proportion, and refluxing the reaction 115 - 125 °C under 11 - 13 hours conditions. 2) Washing and drying: After finishing the reaction, cooling to 45 - 70 °C, adding first solvent to wash the filter cake, and distilling and recovering first solvent by the washing liquid. The second Solvent is used for washing to pH neutrality, and then dried to obtain the plastic colorant fluorescent yellow 3G. in a drying device, cyclohexylamine is used as a raw material, and cyclohexylamine is colorless liquid. (by machine translation)
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Paragraph 0037; 0042-0044; 0047-0049; 0052-0054
(2021/01/15)
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- A nano-scale particle composition, nano-scale phosphor particles and a method for preparing a liquid suitable for inkjet printing ink composition
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A nanoscale pigment particle composition includes a fluorescent compound, such as a benzothioxanthene pigment, including at least one functional moiety, and a stabilizer compound including at least one functional group, wherein the functional moiety associates non-covalently with the functional group; and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale-sized particles.
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Paragraph 0077; 0078
(2017/01/02)
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- Naphthalimide intercalators with chiral amino side chains: Effects of chirality on DNA binding, photodamage and antitumor cytotoxicity
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Several novel heterocyclic-fused naphthalimides intercalators with chiral amino side chains were investigated. Their side chains' chiral configuration determines DNA binding activities in the order: S-enantiomers > R-enantiomers. And their DNA photodamagi
- Yang, Qing,Yang, Peng,Qian, Xuhong,Tong, Lianpeng
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scheme or table
p. 6210 - 6213
(2009/07/18)
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- Functional fluorescent dyes
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Fluorescent functional dyes represented by the following formulas: wherein R1 is hydrogen or methyl; R2, R3, R4, R5, and R6 are each independently selected from the group consisting of hydrogen, alkyl, aryl, alkoxy, aralkyl, alkaryl, halo, and trifluoromethyl; and L is a straight chain or branched chain alkylene containing 3 to about 15 carbon atoms, the alkylene group optionally containing one or more catenary heteroatoms.
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- OLIGOMERIC DYES AND PREPARATION THEREOF
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The invention provides a method for preparing an oligomeric dye by reacting a first component oligomer, having a carbon-carbon backbone, comprising a plurality of polymerized monomer units comprising pendant reactive nucleophilic or electrophilic functional groups; and a dye component having a co-reactive functional group.These oligomeric dyes are suitable for use as additives to impart coloration or fluorescence to thermoplastic polymers, particularly olefinic polymers. The oligomeric dyes of the present invention advantageously are compatible in polymers where conventional dyes often have poor compatibility or solubility.
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- Synthesis and properties of benzothioxanthene dicarboximide hydroperoxide: An efficient 'time-resolved' DNA photocleaver with long-wavelength
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A novel hydroperoxide of benzothioxanthene dicarboximide B4 was synthesized through naphthyl radical-induced aromatic 1,5-hydrogen transfer in an unusual Pschorr cyclization and photooxygenation. It was evaluated as an excellent 'time-resolved' DNA photocleaver with long-wavelength absorption, which can photonick the duplex DNA at a micromolar concentration of 5 μM upon irradiation at 450 nm.
- Qian, Xuhong,Mao, Ping,Yao, Wei,Guo, Xiangfeng
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p. 2995 - 2998
(2007/10/03)
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- Polycyclic Compounds: Part II-Structural Features of CI Disperse Red 303
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Commercial CI Disperse Red 303, a benzothioxanthene dye has been shown to consist of isomeric mixture of 1-methoxy-2-phenyl-3H-naphthothioxanthehe-3-one (I) and 3-methoxy-2-phenyl-1H-naphthothioxanthene-1-one (II), the orange and the red components respectively in almost equal amounts.Their structural assignments are based on spectral studies.
- Ayyangar, N. R.,Joshi, S. V.,Lugade, A. G.
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p. 842 - 845
(2007/10/02)
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