TY  - JOUR
AU  - Čakar, Mira
AU  - Vasić, Vesna
AU  - Petkovska, LT
AU  - Stojić, DL
AU  - Avramov-Ivić, M
AU  - Milovanović, GA
PY  - 1999
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/218
AB  - Newly synthesized oximes, mono and bis imidazole derivatives, which promise to be more effective acetylcholinesterase reactivators than standard antidotes used, were investigated by spectrophotometric and electrochemical methods. The electrochemical investigations confirmed the existence of overlapping equilibria, obtained by spectrophotometric methods. Dissociation constants of those oximes were also obtained by numerical treatment of overlapping equilibria, using the Lavendberg-Marquardt least square method, and when compared with the same for some similar compounds, were found to be very effective acetylcholinesterase reactivators. The distribution of ionic forms of the investigated oximes, as a dependence of pH values, was calculated from the obtained values of dissociation constants. The results indicated that many oxime anions will be available at physiological pH 7.4 and a relative increased ability to reactivate inhibited acetylcholinesterase could be expected.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Journal of Pharmaceutical and Biomedical Analysis
T1  - Spectrophotometric and electrochemical study of protolytic equilibria of some oximes-acetylcholinesterase reactivators
VL  - 20
IS  - 4
SP  - 655
EP  - 662
DO  - 10.1016/S0731-7085(99)00056-4
ER  - 

@article{
author = "Čakar, Mira and Vasić, Vesna and Petkovska, LT and Stojić, DL and Avramov-Ivić, M and Milovanović, GA",
year = "1999",
abstract = "Newly synthesized oximes, mono and bis imidazole derivatives, which promise to be more effective acetylcholinesterase reactivators than standard antidotes used, were investigated by spectrophotometric and electrochemical methods. The electrochemical investigations confirmed the existence of overlapping equilibria, obtained by spectrophotometric methods. Dissociation constants of those oximes were also obtained by numerical treatment of overlapping equilibria, using the Lavendberg-Marquardt least square method, and when compared with the same for some similar compounds, were found to be very effective acetylcholinesterase reactivators. The distribution of ionic forms of the investigated oximes, as a dependence of pH values, was calculated from the obtained values of dissociation constants. The results indicated that many oxime anions will be available at physiological pH 7.4 and a relative increased ability to reactivate inhibited acetylcholinesterase could be expected.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Journal of Pharmaceutical and Biomedical Analysis",
title = "Spectrophotometric and electrochemical study of protolytic equilibria of some oximes-acetylcholinesterase reactivators",
volume = "20",
number = "4",
pages = "655-662",
doi = "10.1016/S0731-7085(99)00056-4"
}

Čakar, M., Vasić, V., Petkovska, L., Stojić, D., Avramov-Ivić, M.,& Milovanović, G.. (1999). Spectrophotometric and electrochemical study of protolytic equilibria of some oximes-acetylcholinesterase reactivators. in Journal of Pharmaceutical and Biomedical Analysis
Pergamon-Elsevier Science Ltd, Oxford., 20(4), 655-662.
https://doi.org/10.1016/S0731-7085(99)00056-4

Čakar M, Vasić V, Petkovska L, Stojić D, Avramov-Ivić M, Milovanović G. Spectrophotometric and electrochemical study of protolytic equilibria of some oximes-acetylcholinesterase reactivators. in Journal of Pharmaceutical and Biomedical Analysis. 1999;20(4):655-662.
doi:10.1016/S0731-7085(99)00056-4 .

Čakar, Mira, Vasić, Vesna, Petkovska, LT, Stojić, DL, Avramov-Ivić, M, Milovanović, GA, "Spectrophotometric and electrochemical study of protolytic equilibria of some oximes-acetylcholinesterase reactivators" in Journal of Pharmaceutical and Biomedical Analysis, 20, no. 4 (1999):655-662,
https://doi.org/10.1016/S0731-7085(99)00056-4 . .