Results 41 to 50 of about 35,436 (307)
Molluscs from a shallow-water whale-fall and their affinities with adjacent benthic communities on the Swedish west coast [PDF]
, 2013 We conducted a species-level study of molluscs associated with a 5-m long carcass of a minke whale at a depth of 125 m in the Kosterfjord (North Sea, Sweden).
Dahlgren, TG +3 more
core +3 more sources
Simple approach to thieno[3,2-d]pyrimidines as new scaffolds of antimicrobial activities
Acta Pharmaceutica, 2016 6ʹ-(4-Chlorophenyl)-spiro[cyclohexane-1,2ʹ-thieno[3,2-d][1,3] oxazin]-4ʹ(1ʹH)-one (1) was synthesized and used as a starting material for the synthesis of a novel series of spiro compounds having biologically active sulfonamide 2a-e and 3ʹ-(4 ...
Hafez Hend N. +2 more
doaj +1 more source
Acta Chimica Slovenica, 2017 Present work is devoted to the purposeful search of novel promising anti-inflammatory agents among the insufficiently known 3'-R-10'-R1-spiro[hetaryl-3(4),6'-[1,2,4]triazino[2,3-c]quinazolin]-2'(7'H)-ones.
Oleksandra Kolomoets +7 more
doaj +1 more source
Frontiers in Microbiology, 2021 Biotransformation of the neo-clerodane diterpene, scutebarbatine F (1), by Streptomyces sp. CPCC 205437 was investigated for the first time, which led to the isolation of nine new metabolites, scutebarbatine F1–F9 (2–10). Their structures were determined
Dewu Zhang +8 more
doaj +1 more source
Chemical and Pharmaceutical Bulletin, 1982 Nitrosation of 2-methylisoquinoline-1, 3 (2H, 4H)-dione (I) with NaNO2 in AcOH afforded the 4-nitroso compound (II) in almost quantitative yield. Catalytic reduction of II produced 4-imino-2-methylisoquinoline-1, 3 (2H, 4H)-dione (III) and a small amount of 4, 4'-bi-2-methylisoquinoline-1, 3 (2H, 4H)-dione (IV).
TAHARA, SACHIYO +2 more
openaire +2 more sources
Competitive formation of spiro and ansa derivatives in the reactions of tetrafluorobutane-1,4-diol with hexachlorocyclotriphosphazene: a comparison with butane-1,4-diol [PDF]
, 2006 Reaction of hexachlorocyclotriphosphazene, N3P3Cl6 (1), in two stoichiometries (1:1.2 and 1:3) with the sodium derivative of the fluorinated diol, 2,2,3,3-tetrafluorobutane-1,4-diol, (2), in THF solution at room temperature afforded six products, whose ...
Beşli, S. +5 more
core +1 more source
Defining the Structural Consequences of Mechanism-Based Inactivation of Mammalian Cytochrome P450 2B4 Using Resonance Raman Spectroscopy [PDF]
, 2010 In view of the potent oxidizing strength of cytochrome P450 intermediates, it is not surprising that certain substrates can give rise to reactive species capable of attacking the heme or critical distal-pocket protein residues to irreversibly modify the ...
Hollenberg, Paul F. +3 more
core +2 more sources
Synthesis of spiro quasi[1]catenanes and quasi[1]rotaxanes via a templated backfolding strategy
Nature Communications, 2017 Spiro compounds contain two or more rings linked together through one common atom. Here the authors provide a method to backfold both rings, producing spiro quasi[1]catenanes, via a strategy of temporarily linking the linear intermediates with covalent ...
Luuk Steemers +4 more
doaj +1 more source
Frontiers in Chemistry, 2018 (±)-Peniorthoesters A and B (±1 and ±2), two pairs of unprecedented spiro-orthoester enantiomers with a 1,4,6-trioxaspiro[4. 5]decane-7-one unit, were obtained from Penicillium minioluteum. Their structures were determined by spectroscopic methods, X-ray
Xiaorui Liu +10 more
doaj +1 more source
Molecules, 2000 Phenolic enamino compounds, prepared from 2-(4-hydroxyphenyl)-ethylamine and the corresponding β-keto carbonyl compounds, afford spiro cyclohexadienone derivatives on reaction with hypervalent iodine reagents.
Anastasios Varvoglis +3 more
doaj +1 more source