52083-08-6Relevant academic research and scientific papers
Endoplasmic reticulum-targetable fluorescent probe for visualizing HClO in EC1 cells
Liu, Jianfei,Niu, Huawei,Song, Xiangzhi,Ye, Yong,Zhai, Zhiyao,Zhang, Panke,Zhang, Yongru
, (2020)
The endoplasmic reticulum is the largest organelle in the cell. Studies have shown that the concentration of HClO is related to many diseases. A new type of probe R1 has positioned to the endoplasmic reticulum. The probe shows good positioning effect, excellent selectivity and high sensitivity, excellent anti-interference, and can quickly reach the response platform. The obvious color change can be used for naked eye observation. Due to its low cytotoxicity, probe R1 was successfully used for EC1 cells imaging under a laser scanning confocal microscope.
Functional Polysiloxane Enables Visualization of the Presence of Carbon Monoxide in Biological Systems and Films
Gai, Fengqing,Ding, Guowei,Wang, Xiaoni,Zuo, Yujing
, p. 12899 - 12905 (2021/10/02)
As an essential gasotransmitter, carbon monoxide (CO) had gradually become a research hotspot in that it possessed important physiological functions and unique pharmacological properties. However, to date, no report has focused on the topic of detecting CO both in vivo and using films. To open up a new field of CO probes, for the first time, we designed a probe (PMAH-CO) that showed a distinctive ratio emission characteristic and displayed the quantitative distribution of CO in HeLa cells and zebrafish with a higher signal-to-noise ratio. Meanwhile, the fluorescent polysiloxane-based film (PMF) containingPMAH-COexhibited an excellent response to CO. Due to the addition of the Si-O bond, the probe exhibited a broad transparency in the visible light range and had excellent photostability. Moreover, the probe was economically viable, easy to handle, and suitable for biological research. Hence,PMAH-COandPMFwould open up the road to broaden the application of silicone materials in the field of fluorescence imaging.
A Naphthalimide-Based Cd2+Fluorescent Probe with Carbamoylmethyl Groups Working as Chelators and PET-Promoters under Neutral Conditions
Tsukamoto, Koji,Shimabukuro, Shota,Mabuchi, Miyuki,Maeda, Hatsuo
supporting information, p. 8579 - 8585 (2016/07/07)
We have developed a novel naphthalimide-based Cd2+fluorescent probe (1), featuring almost no background response, high sensitivity and selectivity toward Cd2+through its high association constant [K=(2.10±0.423)×106], and a practical working pH range. Membrane-permeability was conferred on 1 by replacing the imide and amide substituents with n-butyl groups, and hence the derivative (4) has found practical utility on fluorescent imaging of Cd2+in HeLa cells. Comparison of fluorescent properties between various compounds derived from 1 has demonstrated that the carbamoylmethyl groups in 1 function not only as Cd2+chelators but also as promoters for photoinduced electron transfer (PET) by lowering the basicity of the two tertiary amino groups. As a result, 1 and 4 exhibited highly practical performance as Cd2+probes under neutral conditions.
Isoquinolones
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, (2008/06/13)
Benzo[de]isoquinoline-1,3-dione of Formula or a pharmaceutically acceptable salt thereof wherein R is hydrogen or a protecting group typically used in the art for protecting alcohols and R1-R5are each independently chosen from H, Cl, Br, F, straight or branched alkyl C1-C8alkyl, C3-C8cycloalkyl, heterocycle or bridged heterocycle of 4-9 atoms containing 1-3 heteroatoms, —(CR′2)nOR6, —(CR′2)nN(R6)2, —(CR′2)nNR6COR7, —(CR′2)nNR6SO2OR7, —(CR′2)nNR6SO2N(R6)2, —(CR′2)nOSO2N(R6)2, —(CR′2)nCN, —(CR′2)n(NOR6)R7, NO2, CF3, —(CR′2)nSOmR7, —(CR′2)nSOmR7, —(CR′2)nCO2R6, —(CR′2)nCON(R6)2, Ph, and any two of R1-R5may form a substituted or unsubstituted ring of 5-7 total atoms having 0-2 heteroatoms are claimed which are selective inhibitors of bacterial DNA gyrase and DNA topoisomerase useful in antibacterial agents. Methods for their preparation and formulation as well as novel intermediates useful in the preparation of the final products are also claimed.
