Results 21 to 30 of about 25,448 (310)
Effect of ethyl acetate extract of usnea longissima on esophagogastric adenocarcinoma in rats [PDF]
Purpose: To investigate the effects of the EtOAc extract of U. longissima which is uninvestigated previously on esophagogastric cancer induced in rats with N-methyl-N-nitro-N-nitrosoguanidin (MNNG). Methods: The anticancer activity of EtOAc extract of
Renad Mammadov +9 more
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A method for the rapid qualitative and quantitative analysis of 4,4-dimethyl sterols
A simple and relatively rapid technique has been developed for the separation of several 4,4-dimethyl steryl acetates, some of which contain sterically hindered nuclear double bonds.
G.F. Gibbons +2 more
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Substrate specific hydrolysis of aromatic and aromatic-aliphatic esters in orchid tissue cultures
We found that tissue cultures of higher plants were able, similarly as microorganisms, to transform low-molecular-weight chemical compounds. In tissue cultures of orchids (Cymbidium 'Saint Pierre' and Dendrobium phalaenopsis) acetates of phenols and ...
Agnieszka Mironowicz +2 more
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Eurasian spruce bark beetle, Ips typographus is a destructive pest of the Norway spruce (Picea abies). Recent outbreaks in Europe have been attributed to global warming and other anthropogenic impacts.
Anna Jirošová +5 more
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Chiral phosphines in nucleophilic organocatalysis
This review discusses the tertiary phosphines possessing various chiral skeletons that have been used in asymmetric nucleophilic organocatalytic reactions, including annulations of allenes, alkynes, and Morita–Baylis–Hillman (MBH) acetates, carbonates ...
Yumei Xiao +3 more
doaj +1 more source
Hydroxypropyltrimethyl ammonium chitosan halogenated acetates were successfully synthesized from six different haloacetic acids and hydroxypropyltrimethyl ammonium chloride chitosan (HACC) with high substitution degree, which are hydroxypropyltrimethyl ...
Yingqi Mi +7 more
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New Cytotoxic and Antibacterial Compounds Isolated from the Sea Hare, Aplysia kurodai
: The extract of the sea hare, Aplysia kurodai, showed cytotoxicity against HeLa cells and antibacterial activity against Staphylococcus aureus. Bioassay-guided purification afforded four active compounds, which were identified to be laurinterol ...
Tomihisa Ohta +2 more
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Acetate Metabolism and the Inhibition of Bacterial Growth by Acetate [PDF]
High concentrations of organic acids such as acetate inhibit growth of Escherichia coli and other bacteria. This phenomenon is of interest for understanding bacterial physiology but is also of practical relevance.
Pinhal, Stéphane +3 more
openaire +4 more sources
Synthesis of Diphenyl Acetates.
Synthesis of Diphenyl ...
NRIPENDRA NATH CHATTERJEE
core +1 more source
The retention volumes of 12 sterol acetates relative to cholesteryl acetate were determined on four well-characterized silica gels of different body structure.
Peter D. Klein, Patricia A. Szczepanik
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