synthesized as newpotential antimicrobial agents by facile multi‐step procedure from o‐aminobenzoic acids and 2‐acetylthiazole. A series of biological evaluation showed that compound 7d was the most effective quinazolonethiazole with superior activity to reference drugs chloramphenicol and norfloxacin. This active molecule displayed unobvious bacterial resistance against P. aeruginosa, the low toxicity
Phosphorhydrazides as urease and acetylcholinesterase inhibitors: biological evaluation and QSAR study
作者:Lida Asadi、Khodayar Gholivand、Karim Zare
DOI:10.1007/s13738-016-0836-8
日期:2016.7
New phosphorhydrazide compounds (1–7, 13, 15–16) and thiophosphorhydrazide (14 and 17) were synthesized and characterized by 31P, 13C, 1H NMR and IR spectroscopy. Furthermore, the crystal structure of compound (C6H5NH)(C6H5O)P(O)(NH–NH2) (2) was investigated. The activities of derivatives on acetylcholinesterase (AChE) and urease were determined. Quantitative structure–activity relationship (QSAR) was used to understand the relationship between molecular structural features and inhibitory. DFT–QSAR models for enzymes demonstrated the importance of E LUMO parameter in describing the anti-AChE and anti-urease activities of the synthesized compounds. The correlation matrix of QSAR models and docking analysis confirmed that electrophilicity descriptor can control the influence of the polarizability properties of N–H functional group of PAH derivatives in the inhibition of enzymes.
A rhodamine based fluorescent chemodosimeter for the selective and sensitive detection of copper (II) ions in aqueous media and living cells
作者:Erman Karakuş
DOI:10.1016/j.molstruc.2020.129037
日期:2021.1
Abstract A rhodamine-based fluorescent probe, integrated with phosphonate group, demonstrated highly selective and sensitive recognition towards copper (II) ions over other metal species. Operating via ring opening reaction, the probe molecule (RhP) offered extensive properties such as “turn-on” fluorescence response, naked-eye detection, low detection limit (15 nM) and fast response time (
摘要 基于罗丹明的荧光探针与膦酸酯基团结合,表现出对铜 (II) 离子的高度选择性和敏感性识别,而不是其他金属物种。通过开环反应操作,探针分子 (RhP) 提供了广泛的特性,例如“开启”荧光响应、肉眼检测、低检测限 (15 nM) 和快速响应时间。