Results 101 to 110 of about 172,292 (284)
, 2015 The reaction of 5-amino-3-(4-methoxyphenylamino)-$N$-aryl-1$H$-pyrazole-4-carboxamides \textbf{1a}--\textbf{c} with ethyl acetoacetate \textbf{2} and 2-(4-fluorobenzylidene)malononitrile \textbf{6} yielded pyrazolo[1,5-$a$]pyrimidines \textbf{5a ...
Ashraf S. Hassan +3 more
semanticscholar +1 more source
Flowering in Fruit Trees and Annual Plants as Affected by Purines, Pyrimidines and Triiodobenzoic Acid. [PDF]
, 1959 B. Kessler, RPM Bak, A. Cohen
openalex +1 more source
RESEARCHES ON PYRIMIDINES. LXXXIV. THE TRANSFORMATION BY HYDROLYSIS OF SECONDARY PYRIMIDINE NUCLEOSIDES INTO IMIDAZOL COMBINATIONS. [PDF]
, 1917 Treat B. Johnson, Sidney E. Hadley
openalex +1 more source
From quantum groups to genetic mutations
, 2003 In the framework of the crystal basis model of the genetic code, where each codon is assigned to an irreducible representation of $U_{q \to 0}(sl(2) \oplus sl(2))$, single base mutation matrices are introduced.
Sciarrino, Antonino
core
Ultraviolet selection pressure on the earliest organisms [PDF]
Effects of UV selection pressure on evolutionary development patterns of early ...
Sagan, C.
core +1 more source
PYRIMIDINE NUCLEOSIDES AS PRECURSORS OF PYRIMIDINES IN POLYNUCLEOTIDES [PDF]
Journal of Biological Chemistry, 1950 E. Hammarsten +5 more
openaire +1 more source
Synthesis and in vitro Antibacterial Activity of Some Novel 2-Amino-4, 6-D Derivatives [PDF]
Journal of Sciences, Islamic Republic of Iran, 2011 Heterocyclic systems are one of the most important classes of organic compounds present in nature or synthesized in laboratory. These compounds posses an array of biological activities and are employed in the treatment of commonly occurring diseases ...
S.A. Rahaman
doaj
Recent Advances in Pyrimidine-Based Drugs
PharmaceuticalsPyrimidines have become an increasingly important core structure in many drug molecules over the past 60 years. This article surveys recent areas in which pyrimidines have had a major impact in drug discovery therapeutics, including anti-infectives ...
Baskar Nammalwar, Richard A. Bunce
doaj +1 more source
Macrophage-Released Pyrimidines Inhibit Gemcitabine Therapy in Pancreatic Cancer.
Cell Metabolism, 2019 Christopher J. Halbrook +22 more
semanticscholar +1 more source