Results 31 to 40 of about 48,617 (303)

Pyrimidines- and purines-rich sequences of miRNAs. [PDF]

, 2016
The table shows the content of the pyrimidines or purines nucleotides according to the sequence of miRNAs. The total contents of purines or pyrimidines of the miRNAs presented in the table is above 90%.
Jan Barciszewski (55070), Dariusz Wawrzyniak (2587537), Agnieszka Belter (665923), Monika Piwecka (665925), Miroslawa Z. Barciszewska (2587531), Katarzyna Rolle (95323), Jaroslaw Jeleniewicz (2587534)   +6 more
core   +1 more source

Palladium-Catalyzed Intramolecular Cross-Dehydrogenative Coupling: Synthesis of Fused Imidazo[1,2‑a]pyrimidines and Pyrazolo[1,5‑a]pyrimidines [PDF]

, 2017
A palladium-catalyzed intramolecular dehydrogenative coupling reaction was developed for the synthesis of fused imidazo­[1,2-a]­pyrimidines and pyrazolo­[1,5-a]­pyrimidines.
Siva K. Reddy Kotla (2032867), Jeh-Jeng Wang (1633303), Jaya Kishore Vandavasi (1633306), Rakesh K. Tiwari (1337817), Keykavous Parang (281303)   +4 more
core   +3 more sources

Parallel Synthesis of 2-Substituted 6-(5-Oxo-1-phenylpyrrolidin-3-yl)pyrimidine-5-carboxamides

Molecules, 2012
A library of 24 6-(5-oxo-1-phenylpyrrolidin-3-yl)pyrimidine-5-carboxamides <strong>10</strong>{<em>1</em>,<em>2</em>; <em>1–12</em>} was prepared by a parallel solution-phase approach.
Branko Stanovnik, Uroš Grošelj, Jurij Svete, Georg Dahmann, Drago Kočar, Jernej Baškovč, Bojana Črček   +6 more
doaj   +1 more source

Palladium-Catalyzed Intramolecular Cross-Dehydrogenative Coupling: Synthesis of Fused Imidazo[1,2‑a]pyrimidines and Pyrazolo[1,5‑a]pyrimidines [PDF]

, 2017
A palladium-catalyzed intramolecular dehydrogenative coupling reaction was developed for the synthesis of fused imidazo[1,2-a]pyrimidines and pyrazolo[1,5-a]- pyrimidines.
Wang, Jeh-Jeh, Keykavous Parang, Jaya Kishore Vandavasi, Siva K. Reddy Kotla, Rakesh K. Tiwari, Kotla, Siva K. Reddy, Vandavasi, Jaya Kishore, Parang, Keykavous, Jeh-Jeng Wang, Tiwari, Rakesh   +9 more
core   +2 more sources

Iron-Catalyzed Alkyne-Based Multicomponent Synthesis of Pyrimidines under Air [PDF]

, 2021
An iron-catalyzed sustainable, economically affordable, and eco-friendly synthetic protocol for the construction of various trisubstituted pyrimidines is described.
Gargi Chakraborty, Susmita Sarkar (332225), Amit Kumar Guin, Rakesh Mondal (5676512), Amit Kumar Guin (9766725), Nanda D. Paul, Rakesh Mondal, Gargi Chakraborty (5676509), Nanda D. Paul (2158771), Susmita Sarkar   +9 more
core   +1 more source

Deoxyribonucleotide Triphosphate Metabolism in Cancer and Metabolic Disease

Frontiers in Endocrinology, 2018
The maintenance of a healthy deoxyribonucleotide triphosphate (dNTP) pool is critical for the proper replication and repair of both nuclear and mitochondrial DNA.
Raquel Buj, Katherine M. Aird
doaj   +1 more source

Search for antibacterial activity in a number of new S-derivatives (1,2,4-triazole-3(2H)-yl)methyl)thiopyrimidines

Aktualʹnì Pitannâ Farmacevtičnoï ì Medičnoï Nauki ta Praktiki, 2021
The relevance of the study of 1,2,4-triazole derivatives with pyrimidine fragment is due to the synthesis of potential broad-spectrum antibacterial drugs, low molecular weight inducers of interferon, and antitumor agents, search for molecular descriptors
Yu. V. Karpenko, O. I. Panasenko
doaj   +1 more source

Characterization of Amide Bond Conformers for a Novel Heterocyclic Template of N-acylhydrazone Derivatives

Molecules, 2013
Herein we describe NMR experiments and structural modifications of 4-methyl-2-phenylpyrimidine-N-acylhydrazone compounds (aryl-NAH) in order to discover if duplication of some signals in their 1H- and 13C-NMR spectra was related to a mixture of imine ...
Alexandra Basilio Lopes, Eduardo Miguez, Arthur Eugen Kümmerle, Victor Marcos Rumjanek, Carlos Alberto Manssour Fraga, Eliezer J. Barreiro   +5 more
doaj   +1 more source

Synthesis of substituted 8H-benzo[h]pyrano[2,3-f]quinazolin-8-ones via photochemical 6π-electrocyclization of pyrimidines containing an allomaltol fragment

Beilstein Journal of Organic Chemistry, 2023
For the first time, we elaborated a method for the synthesis of pyrimidines containing an allomaltol unit. The suggested approach is based on the reaction of 2-(1-(dimethylamino)-3-oxo-3-arylprop-1-en-2-yl)-3-hydroxy-6-methyl-4H-pyran-4-ones with ...
Constantine V. Milyutin, Andrey N. Komogortsev, Boris V. Lichitsky, Mikhail E. Minyaev, Valeriya G. Melekhina   +4 more
doaj   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

FEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source