Abstract:
PROBLEM TO BE SOLVED: To provide a simpler preparation method for an enantiomerically and essentially pure compound like levocetirizine or the like by using a novel and enantiomerically and essentially pure intermediate.SOLUTION: There is provided a (S)-2-[4-(4-chlorobenzhydryl)piperazine-1-yl]-ethoxyacetamide-(S)-pyrrolidone-5-carboxylic acid salt, (R)-2-[4-(4-chlorobenzhydryl)piperazine-1-yl]-ethoxyacetamide-(S)-pyrrolidone-5-carboxylic acid salt, (S)-2-[4-(4-chlorobenzhydryl)piperazine-1-yl]-ethoxyacetamide-(R)-pyrrolidone-5-carboxylic acid salt, or (R)-2-[4-(4-chlorobenzhydryl)piperazine-1-yl]-ethoxyacetamide-(R)-pyrrolidone-5-carboxylic acid salt. There is also provided the preparation method for (S)-2-[4-(4-chlorobenzhydryl)piperazine-1-yl]-ethoxyacetamide (I) and (R)-2-[4-(4-chlorobenzhydryl)piperazine-1-yl]-ethoxyacetamide (II) by chemical resolution of a mixture.
Abstract:
PROBLEM TO BE SOLVED: To provide a medicine having the practically same pharmacodynamic profiles of cetirizine and pseudoephedrine as those in a medicine administration type containing the same amount of cetirizine and pseudoephedrine discretely as the discrete active ingredients. SOLUTION: The tablet comprises at least two discrete segments, one of which mainly contains the cetirizine as the active ingredient and the other second segment mainly contains the pseudoephedrine as the active ingredient, wherein the pseudoephedrine segment and the cetirizine segment contact directly and their interfacial surface area is 2 . COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a new intermediate in a method for preparing 2-oxo-1-pyrrolidine derivatives. SOLUTION: The compound having the general formula (A) (X is -CONR 5 R 6 , -COOR 7 , -CO-R 8 , or CN; R 1 is H or the like; R 2 and R 4 are each identically or differently independently H or the like; R 3 is H or the like; R 5 , R 6 and R 7 are each identically or differently independently H or the like; R 8 is H or the like), or a pharmaceutically acceptable salt thereof; the compound including methyl 2-[4R,S-isopropyl-2-oxo-pyrrolidin-1-yl]acrylate and methyl 2-[3R,S-chloro-4R,S-isopropyl-2-oxo-pyrrolidin-1-yl]acrylate. COPYRIGHT: (C)2007,JPO&INPIT
Abstract translation:待解决的问题:在制备2-氧代-1-吡咯烷衍生物的方法中提供新的中间体。 解决方案:具有通式(A)的化合物(X为-CONR 5,R SP 6,-COOR 7,-CO, -R 8 SP>或CN; R 1 SP>是H等; R SP> 2< SP>和< SP> 4< / SP& 相同或不同的独立的H等; R 3是H等; R 6,R 6,R 6, / SP>各自相同或不同地独立地为H等; R 6为H等)或其药学上可接受的盐; 该化合物包括2- [4R,S-异丙基-2-氧代 - 吡咯烷-1-基]丙烯酸甲酯和2- [3R,S-氯-4R,S-异丙基-2-氧代 - 吡咯烷-1-基 ]丙烯酸甲酯。 版权所有(C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a stable pharmaceutical composition for oral administration of an active compound.SOLUTION: The pharmaceutical composition for oral administration contains at least two separate formulations. A first formulation, which contains the active compound selected from 2-[4-(diphenylmethyl)-1-piperazinyl]-acetic acids and their amides, does not contain polyols having a molecular weight of less than 950 in a molar ratio between the polyols and the active compound represented by formula I above 10. Lactose is an exception. A second formulation contains one or more solid polyols of a molecular weight of less than 3,000 and is free of any drug. The composition is a dry syrup composition.
Abstract:
PROBLEM TO BE SOLVED: To provide a stable pharmaceutical composition for oral administration of an active compound.SOLUTION: The oral drug composition includes at least two different formulations, or a first formulation including an active compound selected from 2-[4-(diphenylmethyl)-1-pyperadinyl]-acetic acid and amides thereof, the first formulation not including, except lactose, a polyol having a molecular weight of less than 950 in a mole ratio exceeding 10 of the active compound of formula I; and a second formulation including one or more solid polyols having a molecular weight of less than 3,000, the second formulation including no medicinal substances. The composition has a form of dry syrup.
Abstract:
PROBLEM TO BE SOLVED: To provide a stable pharmaceutical composition for oral administration of an active compound. SOLUTION: The pharmaceutical composition for oral administration contains at least two separate formulations. A first formulation, which contains the active component selected from 2-[4-(diphenylmethyl)-1-piperazinyl]-acetic acids and their amides, does not contain polyols having a molecular weight of less than 950 in a molar ratio between the polyols and the active compound represented by formula I above 10. Lactose is an exception. A second formulation contains one or more solid polyols of a molecular weight of less than 3,000 and is free of any drug. The composition is a dry syrup composition. COPYRIGHT: (C)2010,JPO&INPIT
Abstract in simplified Chinese:本发明系有关2-氧-1-咯啶衍生物及其制法及其用途。本发明亦系关于由未饱和2-氧基-1-咯啶衍生物制备���-乙基-2-氧基-1-咯啶乙酰胺衍生物之方法。
特别本发明系有关新颖中间及其用于制备S-���-乙基-2-氧基-1-咯啶乙酰胺之方法。
Abstract in simplified Chinese:本发明系有关2–氧–1–咯啶衍生物及其制法及其用途。本发明亦系关于由未饱和2–氧基–1–咯啶衍生物制备α–乙基–2–氧基–1–咯啶乙酰胺衍生物之方法。特别本发明系有关新颖中间及其用于制备S–α–乙基–2–氧基–1–咯啶乙酰胺之方法。094125252-p01.bmp
Abstract:
The present invention relates to a liquid composition containing an active substance belonging to the family of substituted benzhydryl piperazines with reduced amounts of preservatives.
Abstract:
The present invention relates to a liquid composition containing an active substance belonging to the family of substituted benzhydryl piperazines with reduced amounts of preservatives.