The binary complexes of europium with benzoic acid and its derivatives(phthalic acid, m-phthalic acid, o-aminobenzoic acid, salicylic acid, and sulfosalicylic acid) weresynthesized and their compositions were identifi...The binary complexes of europium with benzoic acid and its derivatives(phthalic acid, m-phthalic acid, o-aminobenzoic acid, salicylic acid, and sulfosalicylic acid) weresynthesized and their compositions were identified by elemental analyses. UV and IR of the complexeshave been investigated. The UV spectra indicated that the complexes' ultraviolet absorption weremainly the ligands' absorption. The IR spectra showed that the IR spectra of complexes are differentfrom those of free ligands. The fluorescence properties of them were investigated by usingluminescence spectroscopy, the results showed that only three complexes appear as betterluminescence, they were Eu-benzoic acid, Eu-m-phthalic acid and Eu-phthalic acid, while the othersexhibited the ligands' wideband emission.展开更多
以L-酪氨酸甲酯盐酸盐和对羟基苯甲酸(PHBA)为原料,经缩合、水解和亲核取代反应,设计并合成了9个新型的L-酪氨酸二肽衍生物(3b和4a^4h),其结构经1 H NMR、13 C NMR和MS(ESI)表征。采用MTT法评价了化合物对白血病细胞(K562)、人肺癌细胞(...以L-酪氨酸甲酯盐酸盐和对羟基苯甲酸(PHBA)为原料,经缩合、水解和亲核取代反应,设计并合成了9个新型的L-酪氨酸二肽衍生物(3b和4a^4h),其结构经1 H NMR、13 C NMR和MS(ESI)表征。采用MTT法评价了化合物对白血病细胞(K562)、人肺癌细胞(A549)和人肝癌细胞(HepG2)的体外抑制活性。结果表明:N-[N-(4-苄氧基-苯甲酰基)-O-二甲氨基丙基-L-酪氨酰基]-L-苯丙氨醇(4e)对HepG2和K542细胞的抑制活性均高于阳性对照药阿霉素,IC 50分别为0.41和11.77μmol·L^-1。展开更多
文摘The binary complexes of europium with benzoic acid and its derivatives(phthalic acid, m-phthalic acid, o-aminobenzoic acid, salicylic acid, and sulfosalicylic acid) weresynthesized and their compositions were identified by elemental analyses. UV and IR of the complexeshave been investigated. The UV spectra indicated that the complexes' ultraviolet absorption weremainly the ligands' absorption. The IR spectra showed that the IR spectra of complexes are differentfrom those of free ligands. The fluorescence properties of them were investigated by usingluminescence spectroscopy, the results showed that only three complexes appear as betterluminescence, they were Eu-benzoic acid, Eu-m-phthalic acid and Eu-phthalic acid, while the othersexhibited the ligands' wideband emission.
基金This work was financially supported by the National Key Project for Basic Research(2010CB126102)the National Natural Science Foundation of China(30771427 and 31000884)+1 种基金the Natural Science Foundation of Heilongjiang Province,China(C201029)the Special Foundation for Scientific and Technological Innovation Research of Harbin(2011RFXXN038)
文摘以L-酪氨酸甲酯盐酸盐和对羟基苯甲酸(PHBA)为原料,经缩合、水解和亲核取代反应,设计并合成了9个新型的L-酪氨酸二肽衍生物(3b和4a^4h),其结构经1 H NMR、13 C NMR和MS(ESI)表征。采用MTT法评价了化合物对白血病细胞(K562)、人肺癌细胞(A549)和人肝癌细胞(HepG2)的体外抑制活性。结果表明:N-[N-(4-苄氧基-苯甲酰基)-O-二甲氨基丙基-L-酪氨酰基]-L-苯丙氨醇(4e)对HepG2和K542细胞的抑制活性均高于阳性对照药阿霉素,IC 50分别为0.41和11.77μmol·L^-1。
基金Project supported by the Anhui Provincial Natural Science Foundation for Distinguished Young Scholars(No.2008085J09)the National Natural Science Foundation of China(No.32272584)。