摘要:
Disclosed is a method for preparing a dinitrile compound. The method includes reacting an alcohol compound with a nitrile compound having a terminal carbon-carbon unsaturated bond under anhydrous conditions. A potassium alkoxide having 1 to 5 carbon atoms is used as a catalyst in the course of the reaction. According to the method, a high-purity dinitrile compound can be prepared in a simple manner within a short reaction time indicating high productivity.
摘要:
The invention concerns an improved method for synthesising bis[3-(N,N-dialkylamino)propyl]ethers from acrylonitrile, comprising the following reactions: • - a first addition reaction of a water molecule and an acrylonitrile molecule to produce 3-hydroxypropionitrile (reaction 1) • - a second addition reaction of a 3-hydroxypropionitrile molecule obtained by reaction 1 and an acrylonitrile molecule to produce bis(2-cyanoethyl)ether (reaction 2); • - hydrogenation reaction of bis(2-cyanoethyl)ether to produce a reduction of the nitrile functions into primary amine functions to produce bis(3-aminopropyl)ether (reaction 3); • - aminoalkylation reaction of bis(3-aminopropyl)ether to produce bis[3-(N,N-dialkylamino)propyl]ether (reaction 4).
摘要:
Disclosed is a novel phosphoramidite compound which is useful for synthesis of an oligo-RNA. Specifically disclosed is a phosphoramidite compound represented by the following general formula (1). [In the formula, B
摘要:
The invention relates to compounds of Formula (1 ) and to intermediates in the preparation of, compositions containing and uses of such derivatives. The compounds according to the present invention are β2 adrenergic receptor agonists and M3 muscarine receptor antagonists useful in numerous diseases, disorder and conditions, in particular inflammatory, allergic and respiratory diseases, disorder and conditions.
摘要:
The present invention relates to a method for the preparation of 3-substituted-3’-hydroxypropionitrile, more particularly, to a method for the preparation of 3-substituted-3’-hydroxypropionitrile which comprises performing ring opening of 1-substituted-ethylene oxide using sodium cyanide and citric acid in a range of pH 7.8 ~ 8.3 to provide 3-substituted-3’-hydroxypropionitrile in high optical purity and with high yield.
摘要:
The present invention provides compounds of the formula wherein A is of the formula and X, Y, n, R1-R25 are as described in the specification which are modulators of the glucocorticoid receptor and are thus useful for the treatment of animals requiring glucocorticoid receptor agonist therapy. Glucocorticoid receptor modulators are useful in the treatment of certain inflammatory conditions.
摘要:
Amide compounds represented by the following general formula; and microbicides containing the same as the active ingredient: wherein R1 is C¿1-10? haloalkyl or the like; R?2¿ is hydrogen or the like; X is oxygen or sulfur; Y is oxygen or sulfur; Ar is an aromatic group; A is ethylene or the like; and Z?1 and Z2¿ are each alkyl, alkoxy, or the like.