Ethyl 2-pyridin-aldoxime 、 N-chloro-succinamide 在
ice 、 水 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 2.0h,
以to provide pure title compound in 7 gm quantity (55%) as a white solid的产率得到2-吡啶甲醛肟氯化物
The invention relates to ketolide compounds of Formula (I) and their pharmaceutically acceptable salts, solvates, hydrates, polymorphs and stereoisomers having antimicrobial activity. The invention also provides pharmaceutical compositions containing the compounds of invention and methods of treating or preventing microbial infections with the compounds of invention, wherein, T is -C*H(R1)-P-Q; R1 is hydrogen; unsubstituted or substituted lower alkyl, cycloalkyl or aryl; P is heteroaryl ring; Q is unsubstituted or substituted aryl or heteroaryl ring; and P is attached to Q via carbon-carbon link; and R3 is hydrogen or fluorine, With the provision that when R1 is hydrogen, R3 is fluorine.
METHOD OF ENHANCING CELLULAR PRODUCTION OF MOLECULAR CHAPERONE, HYDROXYLAMINE DERIVATIVES USEFUL FOR ENHANCING THE CHAPERONE PRODUCTION AND THE PREPARATION THEREOF
申请人:Vígh László
公开号:US20100267711A1
公开(公告)日:2010-10-21
A method of increasing expression of a molecular chaperon by a cell and/or enhancing the activity of a molecular chaperon in cells is provided. The method comprises treating a cell that is exposed to a physiological stress which induces expression of a molecular chaperon by the cell with an effective amount of a certain hydroxylamine derivative to increase the stress. Alternatively, an hydroxylamine derivative can be administrated to a cell before it is exposed to a physiological stress which induces expression of a molecular chaperon by the cell. Preferably, the cell to which an hydroxylamine derivative is administered is an eukaryotic cell. The hydroxylamine derivative corresponds to the formulae (I) or (II).
The invention also provides novel hydroxylamine derivatives falling within the scope of the formulae (I) and (II) as well as pharmaceutical and/or cosmetical compositions comprising the said compounds.
The invention relates to ketolide compounds of Formula (I) and their pharmaceutically acceptable salts, solvates, hydrates, polymorphs and stereoisomers having antimicrobial activity. The invention also provides pharmaceutical compositions containing the compounds of invention and methods of treating or preventing microbial infections with the compounds of invention, wherein, T is —C*H(R1)—P-Q; R1 is hydrogen; unsubstituted or substituted lower alkyl, cycloalkyl or aryl; P is heteroaryl ring; Q is unsubstituted or substituted aryl or heteroaryl ring; and P is attached to Q via carbon-carbon link; and R3 is hydrogen or fluorine, With the provision that when R1 is hydrogen, R3 is fluorine.