Open Access
Chem. Pharm. Bull.(オピニオン)
國郎 小笠原
- Vol. 43, Iss: 12, pp 1161
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The article was published on 2007-12-01 and is currently open access. It has received 1121 citations till now.read more
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Triterpenoid glycosides from the leaves of Ilex pernyi.
TL;DR: Ten triterpenoid glycosides, including five new ones (1-5), were isolated from the leaves of Ilex pernyi, and the chemical structures of 1-5 were determined on the basis of the chemical and spectroscopic evidence.
Journal ArticleDOI
Secondary metabolome and its defensive role in the aeolidoidean Phyllodesmium longicirrum, (Gastropoda, Heterobranchia, Nudibranchia).
Alexander Bogdanov,Cora Hertzer,Stefan Kehraus,Samuel Nietzer,Sven Rohde,Peter J. Schupp,Heike Wägele,Gabriele M. König +7 more
TL;DR: Determining the metabolome of P. longicirrum and its bioactivity, makes it evident that this seemingly vulnerable soft bodied animal is well protected from fish by its chemical arsenal.
Journal ArticleDOI
Rh–N-Heterocyclic Carbene (NHC) Complex-Catalyzed Addition of Phenylboronic Acid to N-Sulfonyl and N-Phosphinoyl Aldimines
TL;DR: Rh-N-heterocyclic carbene (NHC) complexes were generated in situ from imidazolium salts, [RhCl(cod)](2) and t-BuOK in dioxane in high yields in the presence of a catalytic amount of Rh-NHC complexes.
Journal ArticleDOI
Radical Cyclization in Heterocycle Synthesis 15. Relationship between a Radical Species and Radical Acceptors of Three Different Types of Double Bond in Radical Addition–Cyclization
TL;DR: Relationship between a radical species and radical acceptors of three different types of double bond in radical addition-cyclization was systematically investigated and showed different regioselectivity.
Journal ArticleDOI
Phytochemical constituents of Mongolian traditional medicinal plants, Chamaerhodos erecta and C. altaica, and its constituents prevents the extracellular matrix degradation factors.
Erdenechimeg Selenge,Gendaram Odontuya,Toshihiro Murata,Kenroh Sasaki,Kyoko Kobayashi,Javzan Batkhuu,Fumihiko Yoshizaki +6 more
TL;DR: Activity-guided isolation of the n-butanol fraction of Chamaerhodos erecta and water soluble fraction of C. altaica resulted in the isolation of 39 compounds, including new compounds identified as 4,5-dihydroxybenzaldehyde-3-O-β-d-glucopyranoside, which showed potential a free radical scavenging activity while the new compound showed weak activity.
References
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Kinetic modeling on drug release from controlled drug delivery systems.
TL;DR: The mathematical modeling can ultimately help to optimize the design of a therapeutic device to yield information on the efficacy of various release models.
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Fluorescent Sensors for Measuring Metal Ions in Living Systems
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Dietary phenolics: chemistry, bioavailability and effects on health.
TL;DR: This review summarizes the chemistry, biosynthesis and occurrence of the compounds involved, namely the C6-C3-C6 flavonoids-anthocyanins, dihydrochalcones, Flavan-3-ols, flavanones, flavones, Flavonols and isoflavones, and the mechanisms underlying these processes are discussed.
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Amide bond formation: beyond the myth of coupling reagents
Eric Valeur,Mark Bradley +1 more
TL;DR: This critical review is focussed on the most recently developed coupling reagents with particular attention paid to the pros and cons of the plethora of "acronym" based reagents.
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Facile Discrimination of Aldose Enantiomers by Reversed-Phase HPLC
TL;DR: The reaction was applied to the determination of absolute configuration the sugar residues of an aroma precursor and direct HPLC analysis of the reaction mixture and UV detection at 250 nm discriminated D- and L-enantiomers of aldoses.