Results 11 to 20 of about 19,202 (196)
Regioselectivity of conjugate additions to monoalkyl-1,4-benzoquinones [PDF]
Journal of the Serbian Chemical Society, 2002 The regioselectivity of the reaction of conjugate addition of thiols, amines, methanol and hydrogen chloride with the monoalkyl-1,4-benzoquinones avarone and 2-tert-butyl-1,4-benzoquinone was investigated.
SNEZANA TRIFUNOVIC +5 more
doaj +3 more sources
Microbiology Spectrum, 2022 Candida albicans is an opportunistic pathogenic fungus responsible for candidiasis. The pathogen readily forms antifungal agent-resistant biofilms on implanted medical devices or human tissue.
Yong-Guy Kim +5 more
doaj +1 more source
Norhierridin B, a New Hierridin B-Based Hydroquinone with Improved Antiproliferative Activity
Molecules, 2020 Hierridin B (6), a methylated hydroquinone isolated from the marine picocyanobacterium Cyanobium sp. LEGE 06113, moderately inhibited the growth of colon adenocarcinoma HT-29 cells.
Pedro Brandão +10 more
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Synthetic Strategies to Terpene Quinones/Hydroquinones
Marine Drugs, 2012 The cytotoxic and antiproliferative properties of many natural sesquiterpene-quinones and -hydroquinones from sponges offer promising opportunities for the development of new drugs.
Marina Gordaliza
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Quinone and Hydroquinone Metabolites from the Ascidians of the Genus Aplidium
Marine Drugs, 2014 Ascidians of the genus Aplidium are recognized as an important source of chemical diversity and bioactive natural products. Among the compounds produced by this genus are non-nitrogenous metabolites, mainly prenylated quinones and hydroquinones.
Camila Spereta Bertanha +6 more
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Laccase-Catalyzed Derivatization of Antibiotics with Sulfonamide or Sulfone Structures
Microorganisms, 2021 Trametes spec. laccase (EC 1.10.3.2.) mediates the oxidative coupling of antibiotics with sulfonamide or sulfone structures with 2,5-dihydroxybenzene derivatives to form new heterodimers and heterotrimers. These heteromolecular hybrid products are formed
Annett Mikolasch, Veronika Hahn
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2-Amino-4-(4-methoxyphenyl)-1-(4-methylphenyl)-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carbonitrile
IUCrData, 2018 In the title compound, C24H23N3O2, the cyclohexene and 1,4-dihydropyridine rings of the 1,4,5,6,7,8-hexahydroquinoline ring system each adopt a twisted-boat conformation. The dihedral angle between the benzene rings is 13.89 (10)°.
Asmaa H. A. Tamam +5 more
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Cytotoxic Terpene Quinones from Marine Sponges
Marine Drugs, 2010 The 1,4-benzoquinone moiety is a common structural feature in a large number of compounds that have received considerable attention owing to their broad spectrum of biological activities.
Marina Gordaliza
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AMB Express, 2020 Trametes spec. laccase (EC 1.10.3.2.) mediates the oxidative coupling of 6-aminopenicillanic, 7-aminocephalosporanic, and 7-aminodesacetoxycephalosporanic acid with 2,5-dihydroxybenzoic acid derivatives to form new penicillin and cephalosporin structures,
Annett Mikolasch +3 more
doaj +1 more source
Xishaeleganins A–D, Sesquiterpenoid Hydroquinones from Xisha Marine Sponge Dactylospongia elegans
Marine Drugs, 2022 Four new sesquiterpene hydroquinones, xishaeleganins A–D (6–9), along with eleven known related ones (12 and 14–23) were isolated from the Xisha marine sponge Dactylospongia elegans (family Thorectida).
Bao Chen +5 more
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