ARTICLES

Filter  
Active filters 0
Remove
  

Refine your searches by:

Collections
Chemistry
Medicine / Pharmacology
Biology
Pure sciences
Public health
Medicine / Sub specialtie
Physical
Mining Engineering
Research
Architecture and Urbanism
all records (21)

Languages
English
Portuguese

Countries
USA
Ukraine
Indonesia
India
Russia
Hungary
Serbia
Brazil
Poland
Croatia
all records (15)

Years
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
all records (15)

Filter  
 
108  Articles
1 of 12 pages  |  10  records  |  more records»
By the reaction of 3-phenyl-6-(a-bromoacetyl)-5-methylthieno[2,3-d]pyrimidine-2,4(1H,3H)-dione with thioacetamide 5-methyl-6-(2-methyl-1,3-thiazol-4-yl)-3-phenylthieno[2,3-d]pyrimidine-2,4(1H,3H)-dione was obtained; further the compound was modified by al... see more

Aim. To study the antihypoxic and antioxidant activity of 5,7-dihydro-1H-pyrrolo-[2,3-d]pyrimidine derivatives on the models of the experimental pathology.Materials and methods. The study of the antihypoxic activity of 5,7-dihydro-1H-pyrrolo-[2,3-d]pyrimi... see more

An effective method for synthesis of 6-(1H-benzimidazol-2-yl)-5-methylthieno[2,3-d]pyrimidine-4(3H)-thione starting from the corresponding 4-oxo analog has been developed. For the chemical diversity enlargement the alkylation of 6-(1H-benzimidazol-2-yl)-5... see more

The effective method for the synthesis of ethyl 3-alkyl-5-methyl-4-oxo-2-thioxo-1,2,3,4-tetrahydrothieno[2,3-d]pyrimidine-6-carboxylate derivatives by interaction of diethyl 3-methyl-5-{[(methylsulfanyl)carbothioyl]amino}thiophene-2,4-dicarboxylate with l... see more

By alkylation of 3-amino-5-methyl-4-oxo-N-aryl-2-thioxo-1,2,3,4-tetrahydrothieno[2,3-d]pyrimidine- 6-carboxamides with substituted benzylchlorides and chloroacetic acid the series of novel derivatives of 3-amino-5-methyl-2-(alkylthio)-4-oxo-N-aryl-3,4-dih... see more

An effective approach for synthesis of 5-methyl-3-phenyl-6-(5-phenyl-1,3,4-oxadiazol-2-yl)thieno[2,3-d]pyrimidine-2,4(1H,3H)-dione by 1,1’-carbonyldiimidazole promoted interaction of 5-methyl-2,4-dioxo-3-phenyl-1,2,3,4-tetrahydrothieno[2,3-d]pyrimidine-6-... see more

Continuing the search for new analgesics among derivatives of azahetarylcaboxylic acids by the reaction of ethyl 2-hydroxy-9-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carboxylate and benzylamines in boiling ethanol the corresponding group of N-(... see more

The work is devoted to the synthesis of new pyrrolo[2,3-d]pyrimidine-containing a-hydroxyphosphonic acids as precursors for the synthesis of potential biologically active compounds. The reaction between methyl 7-allyl-1,3dimethyl-2,4-dioxo-2,3,4,7-tetrahy... see more

In this study, five new pyrimidine derivatives were synthesized and characterized by characterization methods such as 1H-NMR, 13C-NMR, FT- -IR and elemental analysis. The corrosion inhibition activity of the synthesized com­pounds was examined by theoreti... see more

1 of 12 pages  |  10  records  |  more records»