Chin. J. Org. Chem. ›› 2016, Vol. 36 ›› Issue (7): 1700-1705.DOI: 10.6023/cjoc201511020 Previous Articles     Next Articles



汤昆a, 张鹏超a,b, 王升a,b, 邱娜a, 张付利a   

  1. a. 河南大学医学院环境医学研究所 开封 475004;
    b. 河南大学药学院 开封 475004
  • 收稿日期:2015-11-12 修回日期:2016-01-16 发布日期:2016-03-11
  • 通讯作者: 张付利
  • 基金资助:


One-Step Synthesis of Novel Asymmetric Trimethine Indocyanine Fluorescent Dye and Fluorescent Labeling

Tang Kuna, Zhang Pengchaoa,b, Wang Shenga,b, Qiu Naa, Zhang Fulia   

  1. a. Research Institute of Environmental Medicine, Medical College of Henan University, Kaifeng 475004;
    b. Pharmaceutical College of Henan University, Kaifeng 475004
  • Received:2015-11-12 Revised:2016-01-16 Published:2016-03-11
  • Supported by:

    Project supported by the National Natural Science Foundation of China (No. 21202036).

A novel water-soluble asymmetric trimethine cyanine dye which contains one nonionic hydrophilic group was first synthesized, which was prepared from one-step synthesis with N-carboxybenzyl-2,3,3-trimethyl-3H-indol-5-sulfonic acid, N,N′-diphenylformamidine and 2,3,3-trimethyl-3H-indol-5-sulfonic acid with PEG. The pure title compound could be obtained by using the self-made C18 reversed-phase chromatographic column. The structure of the product was identified by NMR and HRMS. The spectra character and photostability of this dye were detected, protein labeling of albumin bovine serum (BSA) and cell stain with this dye were investigated. The results showed that the yield of the target compound could reach 73% by simple synthesis and purification, the fluorescence quantum yield was 0.3, the D/P of protein labeling was 1.87. The dye could effectively distinguish between the fixed cells and living cells, because of the significant differences in the staining results.

Key words: trimethine indocyanine, nonionic hydrophilic group, fluorescence quantum yield, protein labeling, cell stain