Results 21 to 30 of about 24,424,699 (186)

Tailored Aza‐Michael Addition as Key Step in the Synthesis of 1H‐imidazo[5,1‐c][1,4]oxazine Scaffolds

open access: yesEuropean Journal of Organic Chemistry, Volume 2022, Issue 40, October 26, 2022., 2022
A new strategy has been proposed for the synthesis of an array of imidazo[5,1‐c][1,4]oxazine chemotypes by using a planned aza‐Michael addition in a 3‐CR heteroring‐forming, post‐cyclization transformation followed by an intramolecular fused‐heterocycles formation process.
Giacomo Mari   +4 more
wiley   +1 more source

A recent update on new synthetic chiral compounds with antileishmanial activity

open access: yesChirality, Volume 34, Issue 10, Page 1279-1297, October 2022., 2022
∎ Abstract Parasitic diseases, including malaria, leishmaniasis, and trypanosomiasis, affect billions of people and are responsible for almost 500,000 deaths/year. In particular, leishmaniasis, a neglected tropical disease, is considered a global public health problem because current drugs have several drawbacks including to toxicity, high cost, and ...
Michele Verboni   +2 more
wiley   +1 more source

Kinetic investigation of reactions of a 3-arylidene-2-thiohydantoin derivative with palladium (II) salts [PDF]

open access: yesJournal of the Serbian Chemical Society
1H-NMR spectroscopy was used to monitor the reactions of an arylidene 2-thiohydantoin derivative, 3-((phenylmethylene)amino)-2-thioxo-4-imidazolidinone (3), with PdCl2, cis-[PdCl2(dmso-S)2] and K2[PdCl4] in DMSO-d6 in order to elucidate the reaction ...
Stanić Petar B.   +3 more
doaj   +1 more source

A New Polymorph of 2-Thiohydantoin

open access: yesX-ray Structure Analysis Online, 2009
A new polymorphic crystal of the title compound, C3H4N2OS, belongs to space group P1 with cell dimensions of a = 4.0520(9)A, b = 6.550(1)A, c = 9.170(2)A, α = 100.148(4)°, β = 100.814(4)°, γ = 96.831(4)°, R1 = 0.069. Neighboring molecules are connected to form cyclic dimers via two types of hydrogen bonds, one between the thioamide groups and the other
Ogawa, Toshikazu   +7 more
openaire   +2 more sources

SYNTHESIS, REACTIONS, AND APPLICATIONS OF HYDANTOIN AND 2-THIOHYDANTOIN DERIVATIVES [PDF]

open access: yes, 2019
On account of the interesting pharmacological properties of hydantoin and 2-thiohydantoin derivatives, and other purposes such as textile printing, catalysts for polymerizations, their use in the production of resins and plastics, they have been the ...
Al-Shareef, Hossa F.   +3 more
core   +1 more source

Design, synthesis, and characterization of PROTACs targeting the androgen receptor in prostate and lung cancer models

open access: yesArchiv der Pharmazie, Volume 355, Issue 5, May 2022., 2022
Structurally distinct enzalutamide‐based proteolysis‐targeting chimeras (PROTACs) were designed, synthesized, and biochemically analyzed. For the first time, androgen receptor degraders were evaluated in lung cancer cells, where significant degradation of the target was observed.
Lukas M. Gockel   +8 more
wiley   +1 more source

HYDANTOINS: THE HISTORY OF 2-THIOHYDANTOIN. XXII. [PDF]

open access: yesJournal of the American Chemical Society, 1913
n ...
openaire   +2 more sources

KINETICS OF THE REACTION OF AN ARYLIDENE 2-THIOHYDANTOIN DERIVATIVE WITH SOME Pd(II) COMPLEXES [PDF]

open access: yes, 2023
Reactions of 3-(benzylideneamino)-2-thioxoimidazolidin-4-one with some palladium complexes (PdCl2, Pd(DMSO)2Cl2 and K2PdCl4) were monitored with NMR spectroscopy, which is used as a convenient and practical tool for determining the kinetic parameters of ...
Šmit, Biljana   +4 more
core   +1 more source

Macathiohydantoin L, a Novel Thiohydantoin Bearing a Thioxohexahydroimidazo [1,5-a] Pyridine Moiety from Maca (Lepidium meyenii Walp.)

open access: yesMolecules, 2021
Five new thiohydantoin derivatives (1–5) were isolated from the rhizomes of Lepidium meyenii Walp. NMR (1H and 13C NMR, 1H−1H COSY, HSQC, and HMBC), HRESIMS, and ECD were employed for the structure elucidation of new compounds.
Ranran Zhang   +5 more
doaj   +1 more source

Synthesis and Fluorescence Mechanism of the Aminoimidazolone Analogues of the Green Fluorescent Protein: Towards Advanced Dyes with Enhanced Stokes Shift, Quantum Yield and Two‐Photon Absorption

open access: yesEuropean Journal of Organic Chemistry, Volume 2021, Issue 41, Page 5649-5660, November 8, 2021., 2021
Intramolecularly hydrogen‐bonded analogues of the green fluorescence protein chromophore with an aminoimidazole moiety were synthesised and characterised. The fluorescence mechanism and substituent effects were investigated in a combined experimental‐computational approach, and a 279‐fold improvement in the quantum yield was realised.
Ervin Kovács   +7 more
wiley   +1 more source

Home - About - Disclaimer - Privacy