摘要:
The present invention relates to oxazolidinone derivatives containing new bicyclic group, having antibacterial activity, or a pharmaceutically acceptable salt thereof, a method for preparing the same, an antibacterial composition comprising the oxazolidinone derivative or a pharmaceutically acceptable salt thereof as an active ingredient, and a method for treating an infectious disease caused by pathogen using the same. The oxazolidinone derivative or a pharmaceutically acceptable salt thereof may exhibit excellent antibacterial activity against gram positive bacteria including various resistant strains.
摘要:
The present invention relates to novel tetrahydropyridine derivatives of formula 1 having an appropriately substituted pyrrolidinone and oxime, wherein m is 0 or 1, n is 1 or 2, R1 is hydrogen, C1-4alkyl, C2-4 alkynyl or aryl, R3 is C1-4 alkyl, which show high efficacy, low cholinergic adverse effects and high affinity for muscarinic acetylcholine receptor; and pharmaceutically acceptable salts thereof; processes for the preparation thereof; and pharmaceutical compositions comprising these compounds or salts.
摘要翻译:本发明涉及具有适当取代的吡咯烷酮和肟的式1的新的四氢吡啶衍生物,其中m为0或1,n为1或2,R 1为氢,C 1-4烷基,C 2-4炔基或芳基, R 3是C 1-4烷基,其显示出高效力,低胆碱能不良反应和对毒蕈碱性乙酰胆碱受体的高亲和力; 及其药学上可接受的盐; 制备方法; 和包含这些化合物或盐的药物组合物。
摘要:
There is disclosed a method for the preparation of pyrido benzoxazine derivative having the following formula I, that is improved in both production coat and yield.The method comprises reacting a compound of the following general formula II with tetraalkyl ammonium fluoride or with a mixture of tetraalkyl ammonium halide and metal fluoride in an organic solvent at a reaction temperature of about 30 to about 100.degree. C. for 1 to 3 hours under stirring; and reacting the resulting solution with a metal hydroxide or a metal carboxylate dissolved in water or in a mixture of water and alcohol, for 1 to 3 hours under heat. ##STR1## wherein X is a fluorine or chlorine atom and X.sub.1 and X.sub.2 each is a halogen atom or a nitro group, R is an alkyl group containing 1 to 4 carbon atoms and R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each is an alkyd group or allyl group containing 1 to 8 carbon atoms.
摘要:
The present invention relates to oxazolidinone compounds represented by Chemical Formula 1, pharmaceutically acceptable salts thereof or hydrates, a method of preparing the same, and a pharmaceutical composition for preventing or treating Hepatitis C infection: Wherein R1, R7 and X are defined in the detailed description.
摘要:
Novel benzoarylureido compounds and a use thereof for prevention and/or treatment of the neurodegenerative brain disease are provided. The neurodegenerative brain diseases may include Alzheimer's disease, dementia, Parkinson's disease, stroke, amyloidosis, Pick's disease, Lou Gehrig's disease, Huntington's disease, Creutzfeld-Jakob disease, and the like.
摘要:
Disclosed are novel imidazolylalkylcarbonyl derivatives useful as calcium channel modulators and a preparation method of the same. Also disclosed is a method for the treatment of diseases by administering the above compounds based on their inhibitory activity against calcium channel.
摘要:
There is disclosed a method for the preparation of the antibacterial (-) piperazine benzoxazine derivative having formula I comprising the steps of reacting (+)2-aminomethylene-3-oxo-3-phenylpropionate derivative of formula II with a base in an organic polar solvent, to give a (-) benzoxazine derivative of formula III: and reacting the (-) benzoxazine derivative of formula III with a piperazine derivative of formula IV in an organic polar solvent. ##STR1##
摘要:
(+)2-benzoyl-3-(silyloxyprop-2(S)-yl)aminoacrylate derivative of following formula I which can be an useful starting material for producing a potent antibacterial compound and a method for the preparation of the same: ##STR1## wherein X is fluoro or chloro; X.sub.1 and X.sub.2 can be halogen or nitro; and R, R.sub.1, R.sub.2 and R.sub.3 each can be C.sub.1-8 alkyl group.
摘要:
The present invention relates to oxazolidinone derivatives containing new bicyclic group, having antibacterial activity, or a pharmaceutically acceptable salt thereof, a method for preparing the same, an antibacterial composition comprising the oxazolidinone derivative or a pharmaceutically acceptable salt thereof as an active ingredient, and a method for treating an infectious disease caused by pathogen using the same. The oxazolidinone derivative or a pharmaceutically acceptable salt thereof may exhibit excellent antibacterial activity against gram positive bacteria including various resistant strains.
摘要:
A process for preparing (-)3(S)-methylbenzoxazine derivative of formula (I) comprising the steps of reacting the compound of formula (II) with benzoic acid, triphenylphosphine and diethyl azodicarboxylate in an organic solvent to obtain the compound of formula (III); hydrogenating the compound of formula (III) in the presence of a metallic catalyst to provide the compound of formula (IV); hydrolyzing the compound of formula (IV) to give the compound of formula (V); and reacting the compound of formula (V) with diethyl azodicarboxylate, triphenylphosphine, and zinc chloride in an organic solvent. The obtained (-)3(S)-methylbenzoxazine derivative is a useful intermediate for preparing an antibacterial agent which has a potent bacteriocidal effect. ##STR1##