Results 61 to 70 of about 6,641 (157)

Pigments of Fungi. XXXIV. Synthesis of Austrocorticinic Acid, (±)-Austrocorticin and the Methyl Ester of Austrocorticone

open access: yes, 1994
Austrocorticinic acid (1) is synthesised via the isophthalic acid (8) which is available in 37% yield over three steps from ethyl (3′,5′-dimethoxyphenyl)acetate (12).
AS Cotterill, M Gill
core   +1 more source

Synthesis and structural characterization of 6-(N-Methyl-pyridin-2-ylcarbamoyl)-pyridine-2-carboxylic Acid Methyl Ester Isomers

open access: yes, 2017
A series of monoamide isomers have been successfully synthesised and characterised using combination of common spectroscopic techniques such Fourier Transform Infrared (FT-IR), 1H and 13C Nuclear Magnetic Resonance (NMR) and Ultraviolet-visible (UV-vis).
Part Time Mohd Zulhimi bin Zolkefali
core  

The herbivore-induced plant volatile methyl salicylate negatively affects attraction of the parasitoid Diadegma semiclausum

open access: yes, 2010
The indirect defense mechanisms of plants comprise the production of herbivore-induced plant volatiles that can attract natural enemies of plant attackers. One of the often emitted compounds after herbivory is methyl salicylate (MeSA).
Snoeren, T.A.L.   +11 more
core   +1 more source

Characterization of pectin lyases on pectins and methyl oligogalacturonates

open access: yes, 1972
Pure saturated and unsaturated oligogalacturonic acids, including unsaturated monogalacturonic acid, were isolated and characterized. Their ultraviolet absorbance at 232 run, and their reactivities in the periodate thiobarbituric acid test and carbazole ...
Voragen, A.G.J.
core  

Enhancement of 5-Aminolevulinic acid-induced oxidative stress on two cancer cell lines by gold nanoparticles

open access: yes, 2009
5-Aminolevulinic acid (5-ALA) and its methyl ester (5-ALA-Me) at mM concentration levels induce oxidative stress via the production of reactive oxygen species (ROS).
Kirschenbaum, Louis J.   +5 more
core   +1 more source

Permeability of 5-aminolevulinic acid oxime derivatives in lipid membranes

open access: yes, 2016
The endogenous molecule 5-aminolevulinic acid (5ALA) and its methyl ester (Me-5ALA) have been used as prodrugs in photodynamic treatment of actinic keratosis and superficial non-melanoma skin cancers for over a decade.
Eriksson, Leif A,   +5 more
core   +1 more source

Structure of (±)-1 beta-tert-Butoxy-3a alpha,4 beta,5,6,7,7a-hexahydro-7 a beta-methyl-5-oxo-4 alpha-indancarboxylic Acid Methyl Ester at 153 K

open access: yes, 1993
The X-ray structure of (+)-13-tert-butoxy-3aa,43,5,6,-7,7a-hexahydro-7a3-methyl-5-oxo-4a-indancarboxylic acid methyl ester is reported, in which the six-membered ring adopts a pseudo chair conformation and the five-membered ring an envelope conformation ...
Groth, Ulrich   +4 more
core   +1 more source

5-Aminolevulinic acid and derivatives thereof [Elektronisk resurs] : properties, lipid permeability and enzymatic reactions

open access: yes, 2010
5-aminolevulinic acid (5-ALA) and derivatives thereof are widely usedprodrugs in treatment of pre-malignant skin diseases of the cancer treatmentmethod photodynamic therapy (PDT).
Erdtman, Edvin,   +2 more
core   +1 more source

Modeling the hydrolysis of perfluorinated compounds containing carboxylic and phosphoric acid ester functions, alkyl iodides, and sulfonamide groups

open access: yes, 2009
Temperature dependent rate constants were estimated for the acid- and base-catalyzed and neutral hydrolysis reactions of perfluorinated telomer acrylates (FTAcrs) and phosphate esters (FTPEs), and the SN1 and SN2 hydrolysis reactions of fluorotelomer ...
Sierra Rayne, Kaya Forest
core  

Correction to (1-Nosyl-5-nitroindol-3-yl)methyl Ester: A Novel Protective Group for Carboxylic Acids

open access: yes, 2016
Correction to (1-Nosyl-5-nitroindol-3-yl)methyl Ester: A Novel Protective Group for Carboxylic ...
Tohru Fukuyama (1508317)   +4 more
core   +1 more source

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