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    • 1. 发明申请
    • PROCESS FOR THE SYNTHESIS OF N- [3-(3-CYANOPYRAZOLO [1,5A] PYRIMIDIN-7-YL)-PHENYL]-N-ETHYL-ACETAMIDE
    • 合成N- [3-(3-氰基吡唑并[1,5-a]嘧啶-7-基) - 苯基] -N-乙基 - 乙酰胺的方法
    • WO2005073235A3
    • 2005-10-06
    • PCT/HU2005000008
    • 2005-01-31
    • RICHTER GEDEON VEGYESZETCZIBULA LASZLODOBAY LASZLOSZOKE KATALINWERKNE PAPP EVANAGYNE BAGDY JUDITTARKANYI GABOR
    • CZIBULA LASZLODOBAY LASZLOSZOKE KATALINWERKNE PAPP EVANAGYNE BAGDY JUDITTARKANYI GABOR
    • C07D487/04
    • C07D487/04C07C233/43
    • The invention relates to N- [3- (3-cyanopyrazolo [1,5-a] pyrimidin-7-yl) - phenyl]-N-ethyl-acetamide of formula (IV) containing less than 0.2 % impurities, which is suitable for therapeutic application. Furthermore the invention relates to a process for the synthesis of therapeutically applicable compound of formula (IV) containing less than 0.2 % impurities by reacting the new intermediate N-{3-[3-(dimethylamino)-1-oxo-2-propenyl]phenyl}-N-ethyl­acetamide hydrochloride of formula (II) and 3-amino-4-pyrazol-carbonitrile base of formula (III) in an acid free medium. The invention also relates to the new N- {3- [3- (dimethylamino) -1- oxo -2- ­propenyl]phenyl } -N-ethyl-acetamide hydrochloride of formula (II). The invention also relates to a process for the synthesis of the new N- [3- [3, (dimethylamino)-1-oxo-2-propenyl]phenyl}-N-ethyl-acetamide hydrochloride of formula (II) having a purity of more than 99.5 %. Furthermore the invention relates to N-{3-[3-cyanopyrazolo (1,5-a) pyrimidin]­6 -yl-3- [ (3-N-ethyl-acetamido-phenyl) -3-oxo-propen-1-yl] - (pyrimidin-7-yl) -phenyl} - N-ethyl-acet-amide of formula (V), which is an isolated new impurity formed in 0.07 % yield during the synthesis of compound of formula (IV).
    • 本发明涉及含有少于0.2%杂质的式(IV)的N- [3-(3-氰基吡唑并[1,5-a]嘧啶-7-基) - 苯基] -N-乙基 - 乙酰胺, 用于治疗应用。 此外,本发明涉及一种通过使新的中间体N- {3- [3-(二甲基氨基)-1-氧代-2-丙烯基] -1,3,5-三嗪与式(IV)化合物反应合成含有少于0.2% 苯基} -N-乙基乙酰胺盐酸盐和式(III)的3-氨基-4-吡唑甲腈碱在无酸介质中反应。 本发明还涉及式(II)的新的N- {3- [3-(二甲基氨基)-1-氧代-2-丙烯基]苯基} -N-乙基 - 乙酰胺盐酸盐。 本发明还涉及合成式(II)的新的N- [3- [3(二甲基氨基)-1-氧代-2-丙烯基]苯基} -N-乙基 - 乙酰胺盐酸盐的方法, 超过99.5%。 此外,本发明涉及N- {3- [3-氰基吡唑并(1,5-a)嘧啶] -6-基-3 - [(3-N-乙基 - 乙酰氨基 - 苯基)-3-氧代 - 嘧啶-7-基] - 苯基} -N-乙基 - 乙酰胺,其是在合成式(IV)化合物期间以0.07%收率形成的分离的新杂质。
    • 9. 发明专利
    • HIGH PURITY BUTOCONAZOLE NITRATE HAVING A PREDETERMINED PARTICLE SIZE AND PROCESS FOR THE PRODUCTION OF THE SAME
    • HU0400270A2
    • 2005-12-28
    • HU0400270
    • 2004-01-27
    • RICHTER GEDEON VEGYESZET
    • CZIBULA LASZLO DRDOBAY LASZLOWERKNE PAPP EVANAGYNE BAGDY JUDITSEBOK FERENC
    • C07D233/54C07D233/60
    • One object of the invention is high purity butoconazole nitrate of the formula (I) (chemical name: 1-[4-(4-chlorophenyl)-2-(2,6-dichlorophenylthio)-n-butyl]-imidazole nitrate) containing maximum 0.1 wt % of chemical impurities, wherein at last 95 % of the particles of the substance are below 75 µm by diameter, whereas at least 99 % of the particles are below 250 µm by diameter. Another object of the invention is a process for the preparation of butoconazole nitrate starting from 1-chloro-4-chlorophenyl-2-butanol and imidazole to yield a compound of the formula (IV), reacting said compound of formula (IV) with thionyl chloride to give a compound of the formula (V) and reacting the obtained compound of the formula (V) with 2,6-dichlorothiophenol, performing said reaction steps in such a manner that the first step is carried out in a mixture of a water immiscible solvent and an aqueous solution of an alkali metal hydroxide or carbonate in the presence a phase transfer catalyst; the second step is accomplished in 1,2-dichloroethane solvent in the presence of dimethylformamide, whereas 1-1.2 mol of thionyl chloride reactant is used based on the amount of the compound of the formula (IV); and the third steps is performed without isolation of the product (VI) from the solution obtained, but to said solution nitric acid is added to give the butoconazole nitrate salt. Still another object of the invention is a process for the preparation of the compound with the above specified particle size starting from crude butoconazole nitrate in such a manner that the starting material is dissolved in a mixture of methanol and methyl isobutyl ketone of 1 - 1.5 : 1 ratio (v/v), this solution is then added to methyl isobutyl ketone cooled to a temperature between 5 °C and -15 °C and the product obtained is isolated. A pharmaceutical composition comprising as active ingredient high purity butoconazole nitrate of specified particle size in admixture with known auxiliaries is also within the scope of the invention.