Abstract:
본 발명에 의하여 식도의 괄약근압력을 증가시키고 식도연동운동을 촉진하며, 위장의 음식분쇄, 배출 등 소화작용을 촉진하며, 음식물의 소화관 이동시간을 빠르게 하는 약제인 구조식 (I)의 레보설피리드의 합성의 중간화합물인 다음 일반구조식 (Ⅳ) 및 그 제조방법을 제공한다.
Abstract:
PURPOSE: An intermediate for preparing levosulpiride and a preparation method thereof are provided, thereby preparing levosulpiride in higher yield and purity. CONSTITUTION: An intermediate represented by the formula (V) for preparing levosulpiride of the formula (I) is provided, wherein R1 and R2 are independently hydrogen, C1-C4 lower alkyl or phenyl; R3 is phenyl derivative of the formula (VIII) or naphthyl derivative of the formula (IX); and X is hydrogen or halogen, provided that the formula (V) may be racemic body, (S) body and (R) body because it contains chiral carbon(*). A method for preparing an intermediate of the formula (V) for preparing levosulpiride comprises activating a compound of the formula (IV) in the presence of base using acid anhydride method, acid chloride method or azide method, and reacting the activated compound of the formula (IV) with 2-methoxy-5-sulfamoyl benzoic acid, wherein R1 and R2 are independently hydrogen, C1-C4 lower alkyl or phenyl; R3 is phenyl derivative of the formula (VIII) or naphthyl derivative of formula (IX); and X is hydrogen or halogen.
Abstract:
PURPOSE: Provided is an industrially available method for producing 2-hydroxy-N-(2-hydroxyethyl)-3- methoxy-5-(2-propenyl)benzamide in substantially higher yield than that of existing method. CONSTITUTION: The method comprises the steps of (i) reacting a compound of formula II with allyl bromide in the presence of alkali to form a compound of formula III; (ii) performing a Claisen rearrangement of the compound of formula III with heating, so as to form a compound of formula IV; and (iii) reacting the compound of formula IV with ethanolamine to form a compound of formula V. In the formulas, R is C1-C9 alkyl group, provided that ethyl group is excluded.
Abstract:
본 발명은 진통·소염제로서 유용한 하기 구조식(1)의 2-[(2,6-디클로로페닐)아미노]페닐아세톡시아세트산(아세클로페낙)의 신규 제조방법에 관한 것이다. 더욱 상세하게는 아세클로페낙에스테르를 적당한 용매에 녹이고 루이스산과 구핵제(Nucleophilic agent)의 공존하에서 반응시켜 비교적 저렴하고 안정적이며 용이한 방법으로 분리하기 어려운 분해부산물의 생성을 최소화하고 반응시간을 단축시켜 고순도의 아세클로페낙을 고수율로 제조하는 방법에 관한 것이다.
Abstract:
PURPOSE: A ziprasidone hydrochloride 1.5 hydrate with novel crystal and a method for preparing the same are provided to ensure 99.5% or more of crystal purity and high stability. CONSTITUTION: A method for preparing crystalline ziprasidone hydrochloride 1.5 hydrate comprises: a step of recrystalizing ziprasidone base in a solvent containing 1-methyl-2-pyrrolidone or dimethylsulfoxide; a step of adding t-butylmethyl ether, buthylmethyl ether and sec-butylmethyl ether or mixture thereof to prepare slurry; and a step of obtaining crystalline ziprasidone hydrochloride 1.5 hydrate.
Abstract:
PURPOSE: A method for isolating and preparing S-(-)-amlodipine is provided to simply and economically isolate and prepare S-(-)-amlodipine having high optical purity. CONSTITUTION: A method for preparing S-(-)-amlodipine compound of chemical formula 1 comprises: a step of reacting racemic amlodipine with L-tartaric acid in tetrahydrofuran solvent; a step of isolating the reactant to precipitate and reaction solution; a step of reacting the isolated reaction solution with D-tartaric acid; a step of reacting (S)-(-)-amlodipine-hemi-D-tartrate-2THF with reaction solution; and a step of reacting the precipitate and base. The solvent containing tetrahydrofuran is tetrahydrofuran single solvent.
Abstract:
A nano-emulsion composition comprising coenzyme Q10 is provided to stabilize coenzyme Q10 and improve bioavailability of coenzyme Q10 by increasing body permeability, absorption, and efficacy of coenzyme Q10. A nano-emulsion composition comprises 5-20 wt.% of coenzyme Q10, 1-5 wt.% of ethanol, 1-5 wt.% of lecithin, 20-30 wt.% of caprylic/capric glyceride, 10-20 wt.% of glycerin, 1-15 wt.% of supplement emulsifier selected from polyoxyethylene (20) sorbitan monolaurate, polyoxyethylene (20) sorbitan monooleate, anionic amino acid emulsifier, sugar ester, cholesterol and sodium lauryl sulfate, and a remaining amount of water, and has viscosity of 1.0-15 cPs. Further, the anionic amino acid emulsifier is one or more selected from TEA cocoyl glutamate, sodium glutamate, sodium cocoyl glutamate, magnesium cocoyl glutamate and sodium lauroyl glutamate.
Abstract:
PURPOSE: Provided is a method of preparing 1,2,3-tris(2-diethylaminoethoxy)benzene and a method of preparing 1,2,3-tris(2-triethylammoniumethoxy)benzene triiodide, gallamine triethiodide. The process enables industrial mass production with high yield. CONSTITUTION: The method of preparing 1,2,3-tris(2-diethylaminoethoxy)benzene comprises the steps of: (a) making pyrogallol lithium salt by reacting pyrogallol and lithium hydroxide or hydrate thereof; and (b) reacting pyrogallol lithium salt obtained from (a) with diethylaminoethyl chloride at 80-130deg.C. The gallamine triethiodide is obtained by reacting 1,2,3-tris(2-diethylaminoethoxy)benzene obtained from (b) with ethyl iodide. The reaction step of (a) and (b) is one pot reaction and the solvent used is selected from acetone, DMF, dioxane, dimethylsulfoxide, acetonitrile, diglyme or their mixture.