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    • 73. 发明授权
    • Process for the separation of isomeric cyclopropane-carboxylic acids
    • 异构环丙烷羧酸分离方法
    • US4599444A
    • 1986-07-08
    • US581081
    • 1984-02-17
    • Elemer FoggassyFerenc FaiglRudolf SoosJozsef Rakoczi
    • Elemer FoggassyFerenc FaiglRudolf SoosJozsef Rakoczi
    • C07C61/37C07B31/00C07B53/00C07B57/00C07C51/00C07C51/487C07C61/40C07C67/00
    • C07C51/487
    • The invention relates to a new process for separating the four stereoisomers of the cyclopropanecarboxylic acids of the formula ##STR1## wherein R stands for a methyl group or a halogen atom.The process comprisesreacting a salt formed with an alkali hydroxide or an alkali carbonate of dl-cis-trans-2,2-dimethyl-3-(2,2-disubstituted vinyl)-cyclopropanecarboxylic acids containing the isomers in any ratio or the pure dl-cis and dl-trans-2,2-dimethyl-3-(2,2-disubstituted vinyl)-cyclopropanecarboxylic acids prepared therefrom by the means of a selective dissolution with aromatic and aliphatic hydrocarbon solvents (suitably with benzene, extraction petroleum ether, n-hexane) with N-benzyl-2-aminobutanol enantiomers or with the hydrochlorides thereof in an aqueous medium or aqueous acetone medium, obtaining the crystalline diastereomeric salt from the solution by filtration, decomposing said salt by using a mineral acid, then separating the thus obtained optically active cyclopropanecarboxylic acidand obtaining the other isomer or other mixture of isomers from the filtrate of the said diastereomeric salt similarly after acidifying by a mineral acid, if desired, purifying the said optically active 2,2-di-methyl-3-(2,2-disubstituted vinyl)-cyclopropane-carboxylic acid isomers obtained by the above-mentioned procedure by a selective precipitation and recovering the resolving agent.
    • 本发明涉及用于分离式(I)的环丙烷羧酸的四种立体异构体的新方法,其中R代表甲基或卤素原子。 该方法包括使含有任何比例的异构体的dl-顺 - 反-2,2-二甲基-3-(2,2-二取代的乙烯基) - 环丙烷羧酸的碱金属氢氧化物或碱金属碳酸盐形成的盐或纯的 dl-顺式和dl-反式-2,2-二甲基-3-(2,2-二取代的乙烯基) - 环丙烷羧酸,其通过选择性溶解与芳族和脂族烃溶剂(适合于苯,萃取石油醚 正己烷)与N-苄基-2-氨基丁醇对映体或其盐酸盐在水性介质或丙酮水溶液中反应,通过过滤从溶液中获得结晶非对映体盐,通过使用无机酸分解所述盐,然后分离 由此获得的光学活性环丙烷羧酸,并从所述非对映异构体盐的滤液中得到其它异构体或其它异构体混合物,同样地在无机酸酸化后,如果需要, 通过选择性沉淀获得的通过上述方法获得的光学活性的2,2-二甲基-3-(2,2-二取代的乙烯基) - 环丙烷 - 羧酸异构体并回收拆分剂。
    • 75. 发明授权
    • Honey powder preserving its natural aroma components
    • 蜂蜜粉保存其天然香气成分
    • US4529608A
    • 1985-07-16
    • US549205
    • 1983-11-04
    • Jozsef SzejtliMarta Tardy nee Lengyel
    • Jozsef SzejtliMarta Tardy nee Lengyel
    • A23L1/00A23L1/08A23L1/22
    • A23L27/77A23L21/25A23L27/70A23P10/43
    • A process for the preparation of honey powder preserving its natural aroma substances comprises(a) kneading 1 part by weight of honey, 0.8 part by weight of starch, pre-hydrolyzed starch or flour and 0.1-0.3 part by weight of cyclodextrin to yield a homogeneous mixture, subjecting the mixture thus obtained to thermal treatment at 100.degree. C. for 20 minutes, disintegrating the hot product obtained after thermal treatment, drying the product at a temperature of 50.degree.-55.degree. C., for 10-50 hours, adding 0.01-1.0% by weight of hydrophobic colloidal silicic acid or alkali earth stearate and grinding it to a powder; or(b) admixing 1 part by weight of honey with 6 parts by weight of a hot saturated aqueous cyclodextrin solution, freezing the homogeneous solution thus obtained, subjecting the product to lyphilization, adding 0.01-1.0% by weight of hydrophobic colloidal silicic acid or alkali earth stearate to the lyophilized product and grinding it to a powder.The advantage of the invention is that the aroma substances of honey are preserved and set free only during consumption.
    • 制备保存其天然芳香物质的蜂蜜粉的方法包括(a)捏合1重量份蜂蜜,0.8重量份淀粉,预水解淀粉或面粉和0.1-0.3重量份环糊精,得到 均匀混合,将得到的混合物在100℃下热处理20分钟,将热处理后得到的热产物分解,在50-55℃的温度下干燥产物10-50小时, 加入0.01-1.0重量%的疏水性胶体硅酸或碱土金属硬脂酸盐,并研磨成粉末; 或(b)将1重量份蜂蜜与6重量份热饱和水性环糊精溶液混合,冷却由此获得的均匀溶液,使产物进行裂解,加入0.01-1.0重量%的疏水胶体硅酸或 碱土金属硬脂酸盐加入到冻干产品中并研磨成粉末。 本发明的优点是蜂蜜的芳香物质被保存并且仅在消费期间释放。
    • 80. 发明授权
    • 6-Hydrazono-pyrido[2,1-b] quinazoline-11 ones
    • 6-肼基 - 吡啶并[2,1-b]喹唑啉-11
    • US4395549A
    • 1983-07-26
    • US308038
    • 1981-10-02
    • Istvan HermeczJozsef KokosiAgnes HorvathZoltan MeszarosGyorgy SzaszTibor BreiningLelle Vasvari nee Debreczy
    • Istvan HermeczJozsef KokosiAgnes HorvathZoltan MeszarosGyorgy SzaszTibor BreiningLelle Vasvari nee Debreczy
    • C07D487/04C07D487/14
    • C07D487/04
    • Intermediates useful in the preparation of Rutecarpine and Rutecarpine derivatives are disclosed as well as a process for the preparation of said intermediates having the following formula: ##STR1## wherein R, R.sup.1 and R.sup.2 are the same or different and stand for hydrogen, halogen, nitro, carboxy, nitrile, alkoxy containing 1 to 4 carbon atoms, alkoxycarbonyl containing 1 to 4 carbon atoms in the alkoxy group, alkyl containing 1 to 4 carbon atoms, amino or hydroxy or R and R.sup.1 together stand for methylenedioxy, R.sup.2 stands for hydrogen, R.sup.3 represents hydrogen or alkyl containing 1 to 4 carbon atoms, R.sup.4 stands for phenyl, phenyl substituted by 1 to 3 same or different substituents selected from the group of halogen(s), alkyl, and alkoxy containing 1 to 4 carbon atoms, phenyloxy, hydroxy, nitro, amino, cyano, carboxy, alkoxycarbonyl having 1 to 4 carbon atoms, alkanoyl having 1 to 4 carbon atoms, methylenedioxy, trifluoromethyl, phenyl and dialkylamino having 1 to 4 carbon atoms in the alkyl part or naphthyl and the dotted line indicated an optional double bond. Also pharmaceutically acceptable acid addition and quaternary ammonium salts are disclosed.
    • 公开了用于制备罗非鱼和芦丁类衍生物的中间体以及制备具有下式的所述中间体的方法:其中R,R 1和R 2相同或不同并代表氢, 卤素,硝基,羧基,腈,含有1至4个碳原子的烷氧基,烷氧基中含有1至4个碳原子的烷氧基羰基,含1至4个碳原子的烷基,氨基或羟基或R和R 1一起代表亚甲二氧基, 对于氢,R 3表示氢或含有1至4个碳原子的烷基,R 4代表苯基,被1至3个相同或不同的取代基取代的苯基,所述取代基选自含1至4个碳原子的卤素,烷基和烷氧基 ,苯氧基,羟基,硝基,氨基,氰基,羧基,具有1至4个碳原子的烷氧基羰基,具有1至4个碳原子的烷酰基,亚甲二氧基,三氟甲基,苯基和在烷基中具有1至4个碳原子的二烷基氨基 部分或萘基,虚线表示任选的双键。 还公开了药学上可接受的酸加成盐和季铵盐。