摘要:
The invention provides a process for the preparation of high purity meloxicam of the Formula (II). The meloxicam raw product is reacted with the solution of potassium hydroxide or potassium carbonate, whereby high purity meloxicam potassium salt monohydrate is produced. Said salt is subsequently treated with mineral or organic acid to yield high-purity meloxicam.
摘要:
The invention relates to a combined pharmaceutical composition for the inhibition of the decline of cognitive functions comprising as A) component (1R,2S,4R)-(-)-2-[N,N-(dimethylaminoethoxy)]-2-phenyl-1,7,7-trimethylbicyclo]-2-phenyl-1.7.-trimethylbicyclo[2.2.1]heptane of the formula (I) or a pharmaceutically acceptable acid addition salt thereof and as B) component a nootropic, an inhibitor of the acetylcholinesterase enzyme and/or a further pharmaceutical active ingredient which exhibits a beneficial effect on the cognitive processes in admixture with suitable inert pharmaceutical carriers and/or auxiliary agents. The combined pharmaceutical composition according to the present invention can be particularly used for the treatment of Alzheimer disease or other diseases showing similar symptoms, diseases accompanied by malfunctions of intellectual abilities (e.g. mental decline in schizophrenia), mental decline in elderly (dementias in elderly), Korsakoff syndrome, Huntington syndrome, Parkinson syndrome or mental decline produced by alcoholism.
摘要:
The present invention relates to a new method of preparation of the polymorph form 1 of methyl (S)-(+)-(2-chlorophenyl)-2-(6,7-dihydro-4H-thieno[3,2-c]pyridine-5-yl-acetate hydrogensulfate of the formula (I).
摘要:
This invention relates to new oxaindene derivatives, a process for the preparation thereof and pharmaceutical compositions comprising the same. The compounds according to the invention are characterized by the general formula (1) ##STR1## wherein R.sup.1 represents lower C.sub.1-4 alkyl, lower C.sub.1-4 alkoxy or lower C.sub.3-6 cycloalkyl, R.sup.2 stands for hydrogen, lower C.sub.1-4 alkyl or lower C.sub.3-6 cycloalkyl, R.sup.3 stands for hydrogen, lower C.sub.1-4 alkyl, lower C.sub.1-4 alkoxy or benzyloxy, X denotes hydrogen, an aliphatic C.sub.1-4 -acyl or benzoyl or naphthoyl group, optionally substituted by 1 or more nitro or C.sub.1-4 -alkoxy group(s) or a group of the formula R.sup.5 R.sup.6 N--R.sup.7 --, wherein R.sup.7 represents lower C.sub.1-4 alkylene and R.sup.5 and R.sup.6 each represent lower C.sub.1-4 alkyl, or R.sup.5 and R.sup.6 together with the nitrogen atom to which they are attached form a piperidyl or morpholinyl group, A and B together form an ethylene or a vinylene group, and n is 1, 2 or 3, and have a strong 5-lipoxygenase (5-LO) enzyme inhibiting activity.
摘要:
The invention refers to pharmaceutical compositions for the prevention and/or treatment of gastrointestinal diseases connected with infections caused by Helicobacter pylori and a method for the treatment of such diseases.The pharmaceutical composition of the invention comprises as active ingredient a cyclic ketone derivative of the formula I ##STR1## wherein and R.sup.1 mean independently hydrogen or halo;R.sup.0 stands for hydrogen or a C.sub.1-4 alkoxy group;R.sup.2 and R.sup.3 independently represent hydrogen; a straight or branched chain C.sub.1-8 alkyl optionally substituted by a dimethylamino group; a C.sub.2-6 alkenyl or a C.sub.3-7 cycloalkyl group; orR.sup.2 and R.sup.3 together with the adjacent nitrogen atom form a 6-membered heterocyclic group containing an additional nitrogen atom that may bear a phenyl group optionally substituted by a C.sub.1-4 alkoxy group;or its stereoisomer or optical isomer or a possible mixture thereof, or a pharmaceutically acceptable acid addition salt or quaternary ammonium salt thereof in admixture with carrier(s) commonly used in pharmaceutical compositions.
摘要:
Novel basic ether of general formula (I), ##STR1## wherein R.sup.1 and R.sup.2 are independently hydrogen, halogen or C.sub.1-4 alkoxy, or together they represent a 3,4-methylenedioxy group,R stands for C.sub.1-8 alkyl,R.sup.3 represents hydrogen, C.sub.1-4 alkyl or hydroxy,A is a valency bond or methylene group,R.sup.4 and R.sup.5 are independently hydrogen, C.sub.1-12 alkyl or C.sub.1-12 alkenyl, orR.sup.4 and R.sup.5 form together with the adjacent nitrogen atom 1-pyrrolidinyl, 1-piperidinyl, morpholino or 1-piperazinyl groups, stereo and optically active isomers and their possible mixtures, acid-addition salts and quaternary ammonium derivatives thereof. The basic ethers have antiulceric and anxiolytic activities.
摘要:
Process for the preparation of 8 -[4 -[4-(pyrimidine-2-yl)-piperazine-1-yl]-butyl]-8-aza-spiro[4.5]decane-7,9-dione (buspiron) of the Formula I ##STR1## and the hydrochlorides thereof having high purity by continuously adding a solution of 8-[4-[4-(pyrimidine-2-yl)-piperazine-1-yl]-but-2 -inyl]-8-aza-spiro[4.5]decane-7,9-dione of the formula II ##STR2## formed with an inert organic solvent having a concentration of at least 40% by weight to a suspension of a hydrogenation catalyst in an inert organic solvent and optionally converting the 8-[4-[4-(pyrimidine-2-yl)-piperazine-1-yl]-butyl]-8-aza-spiro[4.5]decane-7,9-dione thus obtained into the hydrochloride thereof.
摘要:
The invention relates to new heterocyclic compounds containing a protected C-acetyl group. More particulary, the invention concerns new compounds of the formula (VI) ##STR1## wherein R.sup.1 is hydrogen or a group suitable for a temporary protection or amides,X is hydroxyl, halogen, cyano or an --O--SO.sub.2 --R.sup.2 group, in whichR.sup.2 is lower alkyl or aryl,Y.sup.1 and Y.sup.2 together form a group suitable for a temporary protection of a keto group.The new compounds possess anaphylactic properties and are valuable intermediates of thienamycin synthesis. Their preparation and the new intermediates obtained during their preparation are also within the scope of the invention.
摘要:
The present invention relates to a new process for the preparation of rosuvastatin [7-[4-(4-Fluorophenyl)-6-isopropyl-2-(methanesulphonyl-methyl-amino)-pyrimidin-5-yl]-(3R,51S)-dihydroxy-hept-6-enoic acid] of the formula (I) salts formed with bivalent cations, preferably with calcium or zinc ions, characterized in that rosuvastatin tert.-butylammonium salt is reacted with the appropriate bivalent cation, preferably with calcium or zinc ions in a mixture of a water immiscible or slightly miscible organic solvent and water and the formed salt is isolated.