Results 171 to 180 of about 121,011 (315)

PURINE AND PYRIMIDINE REQUIREMENTS OF LACTOBACILLUS LEICHMANNII IN THE PRESENCE OF VITAMIN B ₁₂ OR THYMIDINE [PDF]

, 1952
Mancourt Downing, Irwin A. Rose, B.S. Schweigert   +2 more
openalex   +1 more source

Pyrimidine [PDF]

, 2017
openaire   +2 more sources

Synthesis and reactivity of 1,4‐ethano‐1,5‐naphthyridine derivatives using microwave activation or flow chemistry

European Journal of Organic Chemistry, Accepted Article.
The design of some novel disubstituted 3,4‐dihydro‐2H‐1,4‐ethano‐1,5‐naphthyridine derivatives is reported under classical and flow methodologies. The series were developed from quinuclidinone, which afforded versatile platforms bearing one lactam function in position C‐2 that was then used to create C–N bond using the Chan‐Lam coupling reaction or in ...
Mazarine Laurent, Rodolphe Vatinel, Stéphane Bostyn, Sylvain Routier, Frederic Buron   +4 more
wiley   +1 more source

Multi-omics and single-cell analysis reveals machine learning-based pyrimidine metabolism-related signature in the prognosis of patients with lung adenocarcinoma. [PDF]

Int J Med Sci
Hu T, Shi R, Xu Y, Xu T, Fang Y, Gu Y, Zhou Z, Shu Y.   +7 more
europepmc   +1 more source

Sulfur-containing Pyrimidine Derivatives. III

, 1958
Mahico Horiuchi, Y.K. Sawa
openalex   +2 more sources

One‐Pot Synthesis of Fluorinated Pyrimidine Derivatives from Aldehydes by Photocatalytic α‐Perfluoroalkenylation

European Journal of Organic Chemistry, EarlyView.
Perfluoroalkylated pyrimidines simply made: By a combination of photocatalytic α‐alkenylation and subsequent ring closure simple aldehydes are transformed into the functionalized heterocycles. A phosphine and an imidazolidinone are both employed as catalysts in a convenient one‐pot method.
Yu‐Jun Zhu, Constantin Czekelius
wiley   +1 more source

Tetrazine Chelate Ligands Bridging Two [Ru(acac)2] Fragments: Mixed Valency and Radical Complex Formation

Zeitschrift für anorganische und allgemeine Chemie, Volume 648, Issue 23, December 13, 2022., 2022
Abstract Using bis(3‐methyl‐2‐pyridyl)‐1,2,4,5‐tetrazine 1, 3‐(2‐pyrimidyl)‐6‐methyl‐1,2,4,5‐tetrazine 2 and bis(2‐pyrimidyl)‐1,2,4,5‐tetrazine=bmtz as ligands, the complexes 3=[Ru(acac)2(1)], 4={[Ru(acac)2]2(1)], 5={[Ru(acac)2]2(bmtz)], and 6={[Ru(acac)2]2(2)] were prepared and identified by structure analysis of crystallized material.
Wolfgang Kaim, Isabell Löw, Mark R. Ringenberg, Brigitte Schwederski, Vasileios Filippou, Jan Fiedler   +5 more
wiley   +1 more source

A pilot metabolomics study on clear cell renal cell carcinoma. [PDF]

BMC Urol
Gan Y, Li Z, Ruan M, Yang Y.
europepmc   +1 more source

THE IONIZATION OF PYRIMIDINES IN RELATION TO THE STRUCTURE OF PYRIMIDINE NUCLEOSIDES [PDF]

Journal of Biological Chemistry, 1926
P.A. Levene, H.S. Simms, Lawrence W. Bass   +2 more
openaire   +1 more source

Synthesis and crystal structures of rhodium acetate paddle‐wheel complexes with anchor group‐functionalised and hydrogen bond‐supported axial ligands

Zeitschrift für anorganische und allgemeine Chemie, Volume 648, Issue 23, December 13, 2022., 2022
Abstract We report the synthesis and X‐ray structures of four Rh2(OAc)4(LAx)2 (OAc=acetate, CH3COO−) paddle‐wheel complexes (C1−C4) with methylthio‐modified axial ligands LAx derived from benzamidine (L1), anilinopyrimidine (L2) or isothiourea (L3, L4) that are capable of forming N−H⋅⋅⋅O hydrogen bonds to the equatorially bridging acetate ligands. This
André Mang, Michael Linseis, Rainer F. Winter   +2 more
wiley   +1 more source