41382-35-8Relevant academic research and scientific papers
Naphthalimide intercalators with chiral amino side chains: Effects of chirality on DNA binding, photodamage and antitumor cytotoxicity
Yang, Qing,Yang, Peng,Qian, Xuhong,Tong, Lianpeng
scheme or table, p. 6210 - 6213 (2009/07/18)
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
Sulfur-substituted naphthalimides as photoactivatable anticancer agents: DNA interaction, fluorescence imaging, and phototoxic effects in cultured tumor cells
Ott, Ingo,Xu, Yufang,Liu, Jianwen,Kokoschka, Malte,Harlos, Melanie,Sheldrick, William S.,Qian, Xuhong
, p. 7107 - 7116 (2008/12/22)
A series of sulfur-substituted naphthalimides (1-5) was prepared and investigated as antitumor drugs. Initial DNA interaction studies (by the fluorescence quenching method, UV/vis and CD spectroscopy, thermal denaturation, topoisomerase Western blot analysis, and DNA photocleavage experiments) expectedly suggested the DNA and topoisomerase as main targets of the agents. Fluorescence spectroscopic and microscopic experiments indicated a significant sensitivity of the emission intensities of 3 and 5 to the cellular environment and confirmed the cellular uptake and biodistribution into cell compartments for 1-3 and 5. A comparative evaluation of the antiproliferative effects under different experimental setups (concerning drug exposure period and an additional short-time UV irradiation) revealed significant phototoxic effects for the environmentally sensitive compounds 3 and 5 and strongly suggested the further development of sulfur-substituted naphthalimides for potential use in photodynamic tumor therapy.
Thio-heterocylic naphthalimides with aminoalkyl side chains: Novel alternative tools for photodegradation of genomic DNA without impairment on bioactivities of proteins
Yang, Qing,Qian, Xuhong,Xu, Jianqiang,Sun, Yuanshe,Li, Yonggang
, p. 1615 - 1622 (2007/10/03)
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
Functional fluorescent dyes
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Page 10, (2008/06/13)
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.
OLIGOMERIC DYES AND PREPARATION THEREOF
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Page 25, (2010/02/06)
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.
Highly-efficient DNA photocleavers with long wavelength absorptions: Thio-heterocyclic fused naphthalimides containing aminoalkyl side chains
Qian, Xuhong,Li, Yonggang,Xu, Yufang,Liu, Yan,Qu, Baoyuan
, p. 2665 - 2668 (2007/10/03)
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
