Results 101 to 110 of about 9,178 (246)

Kinase Inhibitors of Novel Pyridopyrimidinone Candidates: Synthesis and In Vitro Anticancer Properties

open access: yesJournal of Chemistry, 2019
A new class of pyridopyrimidinone compounds containing different nitrogenous heterocycles were synthesized starting from the key precursor 2-hydrazinyl-5-phenyl-7-(pyridin-3-yl)pyrido[2,3-d]pyrimidin-4(3H)-one via condensation with series of aromatic ...
Nagy M. Khalifa   +3 more
doaj   +1 more source

Synthesis and pharmacological profiling of analogues of benzyl quinolone carboxylic acid (BQCA) as allosteric modulators of the M1 muscarinic receptor [PDF]

open access: yes, 2013
Established therapy in Alzheimer’s disease involves potentiation of the endogenous orthosteric ligand, acetylcholine, at the M1 muscarinic receptors found in higher concentrations in the cortex and hippocampus.
Arthur Christopoulos   +43 more
core   +2 more sources

Diethyl 2-(3,4-dicyanophenyl)-2-[(2-naphthyl)methyl]malonate

open access: yesActa Crystallographica Section E Structure Reports Online, 2005
The asymmetric unit of the title compound, C26H22N2O4, contains two crystallographically independent mol­ecules. The crystal structure is stabilized by intra- and inter­molecular C—H⋯O inter­actions.
Sener, MK   +4 more
openaire   +3 more sources

Diethyl 2-[(5-methoxy-2-methyl-1-phenylsulfonyl-1H-indol-3-yl)methylene]malonate

open access: yesActa Crystallographica Section E, 2009
In the title compound, C24H25NO7S, the sulfonyl-bound phenyl ring is approximately perpendicular to the indole ring system [dihedral angle = 87.72 (5)°].
T. Kavitha   +4 more
doaj   +1 more source

Lactone Carboxylic Acids. III. Reaction of Ethyl β-Alkylglycidates with Ethyl Malonate [PDF]

open access: yes, 1967
The ring opening of epoxide group in the reaction of ethyl ,β-alkylglycidates with sodiomalonate was observed mostly at the α-position of the glycidates.
Kariya, Yosihiro   +2 more
core   +1 more source

A new purple sulfur bacterium from saline littoral sediments, Thiorhodotvibrio winogradskyi gen. nov. and sp. nov. [PDF]

open access: yes, 1992
Two strains of a new purple sulfur bacterium were isolated in pure culture from the littoral sediment of a saline lake (Mahoney Lake, Canada) and a marine microbial mat from the North Sea island of Mellum, respectively.
BB Jørgensen   +25 more
core   +1 more source

Synthesis of carbon-13-labeled tetradecanoic acids.

open access: yesJournal of Lipid Research, 1983
The synthesis of tetradecanoic acid enriched with 13C at carbons 1, 3, or 6 is described. The label at the carbonyl carbon was introduced by treating 1-bromotridecane with K13CN (90% enriched) to form the 13C-labeled nitrile, which upon hydrolysis ...
J T Sparrow, K M Patel, J D Morrisett
doaj   +1 more source

Ring transformations in reactions of pyrimidine and N-alkylpyrimidinium salts with nucleophile [PDF]

open access: yes
Paper IOn treatment with liquid ammonia at -33°C, the quaternary pyrimidinium salts, i.e. 1-methylpyrimidinium methyl sulfate, 1,2-dimethylpyrimidinium iodide, 1,4,6-trimethyl-pyrimidinium iodide and 1,2,4,6-tetramethylpyrimidinium iodide demethylate ...
Oostveen, E.A.
core   +1 more source

Synthesis and characterization of new diiodocoumarin derivatives with promising antimicrobial activities

open access: yesBeilstein Journal of Organic Chemistry, 2011
A series of 6,8-diiodocoumarin-3-N-carboxamides (4–11) were prepared. Treatment of ethyl 6,8-diiodocoumarin-3-carboxylate (1) with ethyl cyanoacetate/NH4OAc gave ethyl 2-(3-carbamoyl-6,8-diiodocoumarin-4-yl)-2-cyanoacetate (12) and 2-amino-4-hydroxy-7,9 ...
Hany M. Mohamed   +6 more
doaj   +1 more source

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