Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Ewa Chmielewska"'
Publikováno v:
Journal of Pharmaceutical Analysis, Vol 11, Iss 3, Pp 364-373 (2021)
There is a strong need to search for more effective compounds with bone anti-resorptive properties, which will cause fewer complications than commonly used bisphosphonates. To achieve this goal, it is necessary to search for new techniques to charact
Externí odkaz:
https://doaj.org/article/d057013f9dbc439096b289ca8e835c3c
Publikováno v:
Molecules, Vol 28, Iss 7, p 3135 (2023)
A one-pot lithiation–phosphonylation procedure was elaborated as a method to prepare heteroaromatic phosphonic acids. It relied on the direct lithiation of heteroaromatics followed by phosphonylation with diethyl chlorophosphite and then oxidation
Externí odkaz:
https://doaj.org/article/329794eba5464d7394eaa1f79bf9dadf
Autor:
Ewa Chmielewska-Gorczyca
Publikováno v:
Z Badań nad Książką i Księgozbiorami Historycznymi (2020)
Autorka scharakteryzowała elementy układu komunikacyjnego, skupiając się na cechach nośnika informacji. Zwróciła uwagę na współistnienie środków komunikacji, a następnie omówiła ich główne tendencje rozwojowe.
Externí odkaz:
https://doaj.org/article/6955b38be6fb43f58302f2ab69ce50b8
Autor:
Patrycja Petruczynik, Paweł Kafarski, Mateusz Psurski, Joanna Wietrzyk, Zdzisław Kiełbowicz, Jan Kuryszko, Ewa Chmielewska
Publikováno v:
Molecules, Vol 25, Iss 6, p 1424 (2020)
A three-component reaction between diamines (diaminobenzenes, diaminocyclohexanes, and piperazines), triethyl orthoformate, and diethyl phosphite was studied in some detail. In the case of 1,3- and 1,4-diamines and piperazines, products of the substi
Externí odkaz:
https://doaj.org/article/30547e9bc382487a9afb58ee40bf8c97
Autor:
Anna Kuźnik, Roman Mazurkiewicz, Mirosława Grymel, Katarzyna Zielińska, Jakub Adamek, Ewa Chmielewska, Marta Bochno, Sonia Kubica
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 11, Iss 1, Pp 1418-1424 (2015)
A convenient approach has been developed to α-aminoalkylidenebisphosphonates and their asymmetric phosphonyl-phosphinyl and phosphonyl-phosphinoyl analogues by α-phosphonylation, α-phosphinylation or α-phosphinoylation of 1-(N-acylamino)alkylphos
Externí odkaz:
https://doaj.org/article/5d169af806ba433ebbefc0a4de6c3794
Publikováno v:
Proceedings, Vol 22, Iss 1, p 64 (2019)
Bisphosphonates had been found to act as strong metal ion complexing agents with usefulindustrial and household applications. [...]
Externí odkaz:
https://doaj.org/article/6d6484fe16ba4fcfb85b6dcb1fc866b6
Publikováno v:
Molecules, Vol 22, Iss 3, p 450 (2017)
The reaction between benzyl amines, triethyl orthoformate, and diethyl phosphite affords either bisphosphonic (compound 1) or N-benzylaminobenzylphosphonic (compound 2) acid depending on the reaction conditions. The final output of the reaction can b
Externí odkaz:
https://doaj.org/article/e17578c940db480c8f3ce79f46ca777d
Autor:
Patrycja Miszczyk, Dorota Wieczorek, Joanna Gałęzowska, Błażej Dziuk, Joanna Wietrzyk, Ewa Chmielewska
Publikováno v:
Molecules, Vol 22, Iss 2, p 254 (2017)
The reaction of diethyl phosphite with triethyl orthoformate and a primary amine followed by hydrolysis is presented, and the reaction was suitable for the preparation of (aminomethylene)bisphosphonates. 3-Amino-1,2,4-triazole was chosen as an intere
Externí odkaz:
https://doaj.org/article/3b1f047d6e8644148da2afb21dffcde8
Autor:
Ewa Chmielewska, Paweł Kafarski
Publikováno v:
Molecules, Vol 21, Iss 11, p 1474 (2016)
Growing interest in the biological activity of aminobisphosphonates has stimulated the development of methods for their synthesis. Although several general procedures were previously elaborated to reach this goal, aminobisphosphonate chemistry is sti
Externí odkaz:
https://doaj.org/article/57276cb114b9449d813bdd464ffc8594
Autor:
Ewa Chmielewska
Publikováno v:
Journal of Education, Technology and Computer Science. 32:173-183
Professional burnout syndrome is undoubtedly another civilisation disease that affects modern societies. In May 2021 professional burnout was included within the list of the WHO International Classification of Diseases, however, not as a disease, but
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e2323e510afe3a814d03763ae808b14
https://doi.org/10.15584/jetacomps.2021.2.20
https://doi.org/10.15584/jetacomps.2021.2.20