Russian Journal of General Chemistry

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Synthesis of New Symmetrical Diamidophosphates Based on meta-Phenylenediamine under Microwave Irradiation
(Pleiades Publishing, 2023-06-01)
A. B. Kuandykova
;
Б. Ж. Джиембаев
;
Alexander Romanovich Burilov
;
Nurgali Akylbekov
;
Elena Chugunova
Abstract A new series of diphosphorylated amidophosphates was obtained as a result of the reaction of meta-phenylenediamine with dialkyl phosphites in the presence of CCl4 and triethylamine (Atherton–Todd reaction) under microwave irradiation. Structure of all the obtained amidophosphates was established on the basis of 31P, 1H, 13C NMR, IR spectroscopy and mass spectrometry methods, as well as single crystal X-ray diffraction and elemental analysis data.
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New Derivatives of Coumarin-3-carboxylic Acid Containing a Furopyridine Fragment: Synthesis and Some Properties
(Pleiades Publishing, 2025-08-01)
Alexey Vladimirovich Trifonov
;
Nurbol Orynbasaruly Appazov
;
R. Kh. Bagautdinova
;
Lyudmila K. Kibardina
;
Michail A. Pudovik
Abstract As a result of this study, the first representative of coumarin-3-carboxylic acid containing a furopyridine fragment was obtained. It was demonstrated that this coumarin-3-carboxylic acid readily forms salts with various organic amines, diamines, as well as with alkali metal cations (Na, K) and ammonia. Testing of all obtained compounds against tumor cell lines M-HeLa and HuTu 80 revealed that a number of salt structures (specifically those based on 2-aminopyridine, 2,6-diaminopyridine, or sodium) exhibit cytotoxicity comparable to the reference drug, 5-fluorouracil.
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