Results 11 to 20 of about 35,125 (208)

Synthesis and Characterization of New Spiroheterocyclic from Isatin and Evaluation of Some Their Antifungal and Antibacterial Activity [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة
Spiro compounds Spiro cycles are widely found in natural products, medicines, and functional materials[1] the spiro atom forces the planes of the two rings to almost face one another, spiro compounds are a desirable subclass of heterocyclic scaffolds. In
Zubaida Al-Heety, Ali Al-Nasseri
doaj   +1 more source

Structural and stereogenic properties of spiro- and ansa-substituted 1,3-propanedioxy derivatives of a spermine-bridged cyclotriphosphazene [PDF]

open access: yes, 2006
Reaction of 1,3-propanediol with the achiral spermine-bridged cyclophosphazene 1 at various molar ratios in THF gives a number of spiro-and ansa-derivatives that exhibit different stereogenic properties, viz. racemic, meso or achiral forms. As expected,
Adem Kılıç   +29 more
core   +1 more source

New 6′-Amino-5′-cyano-2-oxo-1,2-dihydro-1′H-spiro[indole-3,4′-pyridine]-3′-carboxamides: Synthesis, Reactions, Molecular Docking Studies and Biological Activity

open access: yesMolecules, 2023
The purpose of this work was to prepare new isatin- and monothiomalondiamide-based indole derivatives, as well as to study the properties of the new compounds.
Victor V. Dotsenko   +5 more
doaj   +1 more source

Larix decidua Bark as a Source of Phytoconstituents: An LC-MS Study [PDF]

open access: yes, 2017
Larix decidua bark is a waste of the timber industry and is widely diffused in Northern Italy. This material can be considered a good source of antioxidants and phytoconstituents with possible use in cosmetic or nutraceutical products.
Baldan, Valeria   +8 more
core   +2 more sources

Multicomponent synthesis, biological evaluation and molecular docking of new spiro-oxindole derivatives

open access: yesJournal of Taibah University for Science, 2017
A new series of spiro-oxindoles that were identified based upon their ability to inhibit methionine tRNA synthase (PDB ID: 1PFV) and glucosamine-6-phosphate synthase (PDB ID: 1JXA) enzymes in virtual screening was synthesized by a three-component 1,3 ...
M. Sapnakumari   +3 more
doaj   +1 more source

An update on the synthesis and reactivity of spiro-fused β-lactams [PDF]

open access: yes, 2018
Beta-Lactam ring-containing compounds play a pivotal role in drug design and synthetic chemistry. Spirocyclic beta-lactams, representing an important beta-lactam subclass, have recently attracted considerable interest with respect to new synthetic ...
D'hooghe, Matthias, Dao Thi, Hang
core   +1 more source

Phenalene-phosphazene complexes: effect of exocyclic charge densities on the cyclotriphosphazene ring system [PDF]

open access: yes, 1988
The synthesis and properties of a new series of 1,9-diamino-substituted phenalene complexes of the cyclotriphosphazene ring system is described. One of the compounds is shown to be amphoteric, and this behavior allows an examination of the response of ...
Chichester-Hicks, S. V.   +2 more
core   +1 more source

Investigating nano-structuring within imidazolium ionic liquids: A thermodynamic study using photochromic molecular probes [PDF]

open access: yes, 2009
Following previous studies involving the thermal relaxation of spirocyclic compounds we extended our studies to investigate the formation of nano-structured domains in ionic liquids (ILs).
Byrne, Robert   +3 more
core   +1 more source

Microwave Assisted Synthesis of Some New Heterocyclic Spiro-Derivatives with Potential Antimicrobial and Antioxidant Activity

open access: yesMolecules, 2010
Homophthalic anhydride reacts with different aromatic amines to produce N-substituted homophthalimides. Bromination of the latter produces 4,4-dibromo-homophthalimide derivatives that can be used as precursors for spiro-derivatives.
Mohamed Mohamed Youssef   +1 more
doaj   +1 more source

Ligand-biased ensemble receptor docking (LigBEnD): a hybrid ligand/receptor structure-based approach. [PDF]

open access: yes, 2017
Ligand docking to flexible protein molecules can be efficiently carried out through ensemble docking to multiple protein conformations, either from experimental X-ray structures or from in silico simulations.
Abagyan, Ruben   +2 more
core   +2 more sources

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