53135-64-1Relevant academic research and scientific papers
Hydrolysis and Alcoholysis of Esters of o-Nitrobenzenesulfonic Acid
Sendega,Makitra,Pirig
, p. 1438 - 1446 (2007/10/03)
The rate of solvolysis of esters of o-nitrobenzenesulfonic acid with water and C1-C4 alcohols is satisfactorily described by two-parametric Hammett-Taft equation with predominating effect of the electronic factor σ*. The effect of the structure of the hydrocarbon rest in the sulfonic ester group does not fit to this relationship.
Antiulcer compounds having a substituted alkynyl or quinoxaline nucleus and methods of making thereof
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, (2008/06/13)
This invention relates to a novel compound which is useful as a drug in preventing and/or treating peptic ulcer-related diseases, to a production process thereof and to a pharmaceutical composition containing the same. Particularly, it provides a compound which has a specified substituted alkynylpyrazine nucleus or a specified substituted alkynylquinoxaline nucleus, represented by the following formula (I) STR1 wherein A is represented by the following formula (II) or (III) STR2 and R1 is represented by the following formula (IV), STR3 and the salts thereof, a production process thereof and a pharmaceutical composition containing the same. The inventive compound is useful as a drug in preventing and/or treating peptic ulcer-related diseases.
Alkyl Ether and Enol Ether Analogs of (Z)-5-Decenyl Acetate, a Pheromone Component of the Turnip Moth, Agrotis segetum: Probing a Proposed Bioactive Conformation for Chain-Elongated Analogs
Gustavsson, Anna-Lena,Liljefors, Tommy,Hansson, Bill S.
, p. 815 - 832 (2007/10/03)
In order to test a previous conclusion that chain-elongated analogs of (Z)-5-decenyl acetate (1), a pheromone component of the turnip moth, Agrotis segetum, adopt a loop conformation of the terminal alkyl chain in the bioactive conformation, a series of alkyl ether and enol ether analogs of 1 and (Z)-5-dodecenyl acetate (2) have been synthesized and tested using single-cell electrophysiology. In these analogs a methylene group in positions 7 and 9 of 1 and in positions 7 and 11 in 2 have been replaced by an oxygen atom in order to energetically facilitate the formation of a loop conformation in the chain-elongated analogs. The electrophysiological results in combination with molecular mechanics (MM2 and MM3) calculated conformational energies show that the activity decreases of the chain-elongated ether analogs are significantly smaller than that for 2 and that these activity decreases parallel the conformational energies for a loop formation of the terminal chains in the analogs. The results support our previous conclusion that the terminal chain of chain-elongated analogs of 1 adopts a loop conformation in their bioactive conformations.
ALLENE ETHERS FOR THE CATIONIC CYCLOPENTANNELATION
Tius, Marcus A.,Ousset, J-B.,Astrab, Donald P.,Fauq, Abdul H.,Trehan, Sanjay
, p. 923 - 924 (2007/10/02)
Only allene ethers having a group which is capable of departing as a stable cation participate successfully in the cationic cyclopentannelation reaction.
