Results 21 to 30 of about 52,181 (281)

Unusual nucleophilic addition of Grignard reagents in the synthesis of 4-amino-pyrimidines [PDF]

, 2018
Pyrimidines have always received considerable attention because of their importance in synthesis and elucidation of biochemical roles, in particular that of vitamin B1.
David L. Hughes (628280), Ward, Leanne, Stephenson, G. Richard, Tinson, Ryan A. J., Ryan A. J. Tinson (5620037), Hughes, David L., Leanne Ward (4383349), G. Richard Stephenson (1930399)   +7 more
core   +1 more source

Synthesis, characterisation and biological activities of N-phenyl-ethan-1-one-2,4-dimethyl-1,3-butadiene-1,4-thiazin derivatives

Tikrit Journal of Pure Science, 2023
A facile synthesis of some new 1, 2- thiazine derivatives by the Claisen-Schmidt reaction-induced aldolic condensation of enolizable aromatic ketones with substituted benzaldehydes, and then they were treated with urea and thiourea to obtain the ...
Nabaz Abdulmajeed Mohammad Salih
doaj   +1 more source

Structure based design and synthesis of antiparasitic pyrrolopyrimidines targeting pteridine reductase 1 [PDF]

, 2014
The treatment of Human African Trypanosomiasis remains a major unmet health need in sub-Saharan Africa. Approaches involving new molecular targets are important and pteridine reductase 1 (PTR1), an enzyme that reduces dihydrobiopterin in Trypanosoma spp.
Kirsten Stewart, Michael P. Barrett, Pui Ee Wong, William N. Hunter, Barrack, Keri L., Hunter, William N., Huggan, Judith, Colin L. Gibson, Judith K. Huggan, Barrett, Michael P., Federica Giordani, Suckling, Colin J., Colin J. Suckling, Khalaf, Abedawn I., Huggan, Judith K., Wong, Pui Ee, Khalaf, Abedawn I, Barrack, Keri L, Stewart, Kirsten, Keri L. Barrack, Suckling, Colin J, Hunter, Wililam N., Gibson, Colin L., Giordani, Federica, Gibson, Colin L, Abedawn I. Khalaf, Hunter, William N   +26 more
core   +1 more source

Proficient synthesis of bioactive annulated pyrimidine derivatives: A review

Journal of Taibah University for Science, 2017
Syntheses of bioactive annulated pyrimidine derivatives are the most significant tasks in N-heterocyclic chemistry because these compounds have proved to be very attractive and useful for the design of new molecular frameworks of potential drugs with ...
Ajmal R. Bhat, Rajendra S. Dongre, Gowhar A. Naikoo, Israr U. Hassan, Tabassum Ara   +4 more
doaj   +1 more source

Influence of 5-hydroxymethyluracil on the dynamics of angiogenic growth factors in the perioperative period of surgical myocardial revascularization: results of a randomized trial

Российский кардиологический журнал, 2023
Aim. To evaluate the effect of 5-hydroxymethyluracil on the dynamics of angiogenic growth factors in the perioperative period of surgical myocardial revascularization.Material and methods.
B. A. Oleynik, V. V. Plechev, V. A. Evdakov, R. I. Izhbuldin, N. Sh. Zagidullin   +4 more
doaj   +1 more source

Medicinal attributes of pyrazolo[1,5-a]pyrimidine based scaffold derivatives targeting kinases as anticancer agents

Future Journal of Pharmaceutical Sciences, 2016
Pyrazolo pyrimidines are fused heterocyclic ring systems which known as bioisosteres of adenine, that are necessary for every aspect of cell life. Pyrazolo[1,5-a]pyrimidines derivatives have been explored for their inhibitory activity towards a variety ...
Nasser S.M. Ismail, Ghada M.E. Ali, Diaa A. Ibrahim, Amira M. Elmetwali   +3 more
doaj   +1 more source

Synthesis of pyrimidines by Fe3O4@SiO2-L-proline nanoparticles

Main Group Metal Chemistry, 2020
Fe3O4@SiO2-L-proline nanoparticles have been used as an effective catalyst for the preparation of pyrimidines by three-component reactions of 1,3-dimethylbarbituric acid, aromatic aldehydes and 4-methyl aniline or 4-methoxy aniline under reflux condition
Safaei-Ghomi Javad, Samadi Zahra
doaj   +1 more source

Design, Synthesis, Pharmacodynamic and In Silico Pharmacokinetic Evaluation of Some Novel Biginelli-Derived Pyrimidines and Fused Pyrimidines as Calcium Channel Blockers

Molecules, 2022
Some new pyrimidine derivatives comprising arylsulfonylhydrazino, ethoxycarbonylhydrazino, thiocarbamoylhydrazino and substituted hydrazone and thiosemicarbazide functionalities were prepared from Biginelli-derived pyrimidine precursors.
Ahmed M. Farghaly, Ola H. Rizk, Inas Darwish, Manal Hamza, Mezna Saleh Altowyan, Assem Barakat, Mohamed Teleb   +6 more
doaj   +1 more source

Ruthenium(II)-Catalyzed Positional Selective C–H Oxygenation of N‑Aryl-2-pyrimidines

, 2018
Efficient Ru-catalyzed regioselective C–H oxygenation of N-aryl-2-pyrimidines is described with aryl carboxylic acids in the presence of AgSbF6 as an additive and Ag2CO3 as an oxidant.
Tharmalingam Punniyamurthy (1490761), Sourav Pradhan (3814492), Tanumay Sarkar (5277467)   +2 more
core   +2 more sources

Development of Piperazine- and Oxazine-Linked Pyrimidines as p65 Subunit Binders of NF–κB in Human Breast Cancer Cells

Biomedicines, 2023
Nuclear factor kappa B (NF–κB) is a potential therapeutic target in breast cancer. In the current study, a new class of oxazine– and piperazine–linked pyrimidines was developed as inhibitors of NF–κB, overcoming the complexity of the oxazine structure ...
Akshay Ravish, Bhanuprakash C. Narasimhachar, Zhang Xi, Divakar Vishwanath, Arunkumar Mohan, Santosh L. Gaonkar, Paduvalahippe Gowdegowda Chandrashekara, Kwang Seok Ahn, Vijay Pandey, Peter E. Lobie, Basappa Basappa   +10 more
doaj   +1 more source