Results 291 to 300 of about 104,207 (331)

Antiprotozoal Activity of Highly Substituted Pyrazole and Pyrimidine Derivatives. [PDF]

ChemMedChem
Lusardi M, Basilico N, Iervasi E, Brullo C, Parapini S, Ponassi M, Rosano C, Spallarossa A.   +7 more
europepmc   +1 more source

An Efficient Synthesis of 3,5-Bis-Aminated Pyrazolo[1,5-a]Pyrimidines: Microwave-Assisted Copper Catalyzed C-3 Amination of 5-Amino-3-Bromo-Substituted Precursors. [PDF]

Molecules
Iorkula TH, Tolman BA, Ganiyu LO, Peterson MA.   +3 more
europepmc   +1 more source

A multicenter retrospective study evaluating the effect of proton pump inhibitors on adjuvant tegafur-uracil/leucovorin efficacy for stage II-III colorectal cancer. [PDF]

Sci Rep
Takahashi M, Takahashi K, Takahashi K, Fujiwara D, Ito K, Yamase H, Yamashiro K, Asano H, Yabuta N, Hoshida T, Koseki T, Shibano M, Tsukada K, Takata Y, Komatsu Y, Noda S, Hashimoto K, Otori T.   +17 more
europepmc   +1 more source

Predicting rare DNA conformations via dynamical graphical models: a case study of the B→A transition. [PDF]

Nucleic Acids Res
De Silva N, Perez A.
europepmc   +1 more source

A deep intronic mutation causes RAD50 deficiency through an unusual mechanism of distant exon activation. [PDF]

J Clin Invest
Bousset K, Donega S, Ameziane N, Fleischhammer T, Ramachandran D, Poley-Gil M, Schindler D, van de Laar IM, Pagani F, Dörk T.   +9 more
europepmc   +1 more source

Design of PI3K-mTOR Dual Inhibitors for Ovarian Cancer: Are we on the Right Track? [PDF]

Curr Med Chem
K MS, Rathi E, Udupa KS, Prasada K S, Pai KSR, Kini SG.   +5 more
europepmc   +1 more source

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Pyrimidines. XIII. Novel pyrimidine to pyrimidine transformation reactions

Journal of Heterocyclic Chemistry, 1977
AbstractNovel pyrimidine to pyrimidine transformation reactions are described. 1,3‐Dimethyl‐(or diethyl)‐uracil(1) are converted into isocytosine, 2‐thiouracil or uracil derivatives by treatment with guanidine, thiourea or urea, respectively. The latter two cases require base catalysis. The effects of some substituents at C‐5 and C‐6 of 1,3‐dialkylated
Kyoichi A. Watanabe, Kosaku Hirota, Jack J. Fox   +2 more
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The Auger spectroscopy of pyrimidine and halogen-substituted pyrimidines

The Journal of Chemical Physics, 2008
The C 1s and N 1s Auger spectra of pyrimidine, 2-chloropyrimidine, and 5-bromopyrimidine have been measured in an electron impact experiment at 1000 eV. In the case of the halogen-substituted pyrimidines, also the Cl 2p and Br 3d Auger spectra have been recorded.
Storchi L, Tarantelli F, Veronesi S, Bolognesi P, Fainelli E, Avaldi L   +5 more
openaire   +4 more sources