Results 11 to 20 of about 23,915 (334)

Search for Antiviral Preparations in Series of New Derivatives of N-Substituted Piperidines [PDF]

open access: yesMolecules
Cyanohydrin synthesis, as the simplest preparative method for introducing a carboxyl group into a piperidine molecule, has been used to obtain potentially biologically active piperidinecarboxylic acids, which have alkyl and arylalkyl radicals at the ...
Gulmira S. Akhmetova   +10 more
doaj   +2 more sources

Enantioselective synthesis of chiral 2,3-cis-disubstituted piperidines and C1-substituted tetrahydroisoquinolines by asymmetric Cu-catalyzed cyclizative aminoboration [PDF]

open access: yesNature Communications
Chiral N-heterocycles such as piperidines and tetrahydroisoquinolines are privileged structural motifs in drug discovery and pharmaceutical industry.
Dazhuang Zhang   +3 more
doaj   +2 more sources

Über γ‐substituierte Piperidine [PDF]

open access: greenBerichte der deutschen chemischen Gesellschaft, 1915
n ...
Ernst Koenigs, Ludwig Neumann
openalex   +4 more sources

Designing chemical systems for precision deuteration of medicinal building blocks [PDF]

open access: yesNature Communications
Methods are lacking that can prepare deuterium-enriched building blocks, in the full range of deuterium substitution patterns at the isotopic purity levels demanded by pharmaceutical use.
Jonathan D. Dabbs   +8 more
doaj   +2 more sources

SOME COMPOUNDS OF PIPERIDINE WITH HALIDES. [PDF]

open access: greenJournal of the American Chemical Society, 1921
n ...
Clifford S. Leonard
openalex   +3 more sources

Experimental study of the pharmacological activity of new azaheterocycles derivatives: A literature review [PDF]

open access: yesĶazaķstannyṇ Klinikalyķ Medicinasy, 2022
Diseases associated with the pathology of the cardiovascular system are one of the key causes of death all over the world. In particular, arrhythmia may entail the most severe complications, including unexpected death.
Malika Khaiitova   +4 more
doaj   +1 more source

Synthesis and Characterization of Novel Methyl (3)5-(N-Boc-piperidinyl)-1H-pyrazole-4-carboxylates

open access: yesMolecules, 2021
Series of methyl 3- and 5-(N-Boc-piperidinyl)-1H-pyrazole-4-carboxylates were developed and regioselectively synthesized as novel heterocyclic amino acids in their N-Boc protected ester form for achiral and chiral building blocks.
Gita Matulevičiūtė   +9 more
doaj   +1 more source

CeO2/CuO@N-GQDs@NH2 nanocomposite as a reusable and efficient catalyst for the synthesis of piperidines [PDF]

open access: yesNanochemistry Research, 2020
An efficient pseudo six-component synthesis of bis-spiropiperidinesis presented by one-pot condensation of formaldehyde, aromatic amine and dimedone or N,N-dimethyl-barbituric acid using CeO2/CuO@N-GQDs@NH2 nanocomposite at room temperature. The catalyst
Hossein Shahbazi-Alavi   +2 more
doaj   +1 more source

One-Pot Route from Halogenated Amides to Piperidines and Pyrrolidines

open access: yesMolecules, 2022
Piperidine and pyrrolidine derivatives are important nitrogen heterocyclic structures with a wide range of biological activities. However, reported methods for their construction often face problems of requiring the use of expensive metal catalysts ...
Qiao Song   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy