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    • 4. 发明专利
    • METHOD FOR PRODUCING 3-FLUORO-2,3-DIDEOXY-β-D-RIBOFURANOSYL-TYPE NUCLEOSIDE DERIVATIVE
    • 生产3-氟-2,3-二脱氧-β-D-吡喃木糖型核苷衍生物的方法
    • JP2006022009A
    • 2006-01-26
    • JP2004198851
    • 2004-07-06
    • Ajinomoto Co IncCentral Glass Co Ltdセントラル硝子株式会社味の素株式会社
    • ISHII AKIHISAOTSUKA TAKASHIKUME KOJIKURIYAMA KATSUTORII TAKAYOSHIONISHI TOMOYUKIIZAWA KUNISUKE
    • C07H1/00C07H19/16
    • Y02P20/55
    • PROBLEM TO BE SOLVED: To provide a method for producing a 3-fluoro-2,3-dideoxy-β-D-ribofuranosyl-type nucleoside derivative, capable of industrially producing the derivative, especially 3'-fluoro-2',3'-dideoxyguanosine, at a low cost. SOLUTION: This 3-fluoro-2,3-dideoxy-β-D-ribofuranosyl-type nucleoside derivative is produced by reacting a 3-halogeno-3-dideoxy-β-D-xylofuranosyl-type nucleoside derivative with sulfur tetrafluoride (SF 4 ), so as to convert the xylofuranosyl-type derivative into a 2-halogeno-2,3-dideoxy-3-fluoro-β-D-arabinofuranosyl-type nucleoside derivative with high regioselectivity, and then conducting, irrespective of order, a process (1) for subjecting a halogen atom at the 2'-position to dehalogenation, a process (2) for subjecting a protective group for a hydroxy group at the 5'-position to deprotection, and, if necessary, a process (3) for conducting at least any one of protection, deprotection, and modification of a nucleic-acid base or its derivative. COPYRIGHT: (C)2006,JPO&NCIPI
    • 待解决的问题:提供一种能够在工业上生产该衍生物的3-氟-2,3-二脱氧-β-D-呋喃核糖型核苷衍生物的制备方法,特别是3'-氟-2' ,3'-二脱氧鸟苷,成本低廉。 解决方案:3-氟-2,3-二脱氧-β-D-呋喃核糖基型核苷衍生物通过3-卤代-3-二脱氧-β-D-木糖呋喃糖基型核苷衍生物与四氟化硫 (SF 4 ),将该恶二糖基型衍生物转化为具有高区域选择性的2-卤代-2,3-二脱氧-3-氟-β-D-阿拉伯呋喃糖基型核苷衍生物, 然后进行将2位的卤原子进行脱卤的步骤(1),不管其顺序如何,将在5'-位保护基进行羟基保护基脱保护的方法(2) 如果需要,可以进行核酸碱基或其衍生物的保护,脱保护和修饰中的至少任一种的方法(3)。 版权所有(C)2006,JPO&NCIPI
    • 5. 发明专利
    • Optically active 1-aryl-2-fluoro-substituted ethylamine and method for producing the same
    • 光活性1-芳基-2-氟取代的乙酰胺及其生产方法
    • JP2005247785A
    • 2005-09-15
    • JP2004062735
    • 2004-03-05
    • Central Glass Co Ltdセントラル硝子株式会社
    • ISHII AKIHISAKANAI MASATOMIKURIYAMA KATSUYASUMOTO MANABUINOMIYA NORITOOTSUKA TAKASHISUDO KATSUHIDEUEDA KOJI
    • C07C209/26C07B61/00C07C209/52C07C209/60C07C209/62C07C211/29C07C249/02C07C251/24
    • C07C251/24C07C209/52C07C209/62C07C211/29C07C249/02
    • PROBLEM TO BE SOLVED: To provide an optically active 1-aryl-2-fluoro-substituted ethylamine becoming an important intermediate of a candidate compound of a medicine and an agrochemical, and an industrial method for producing the same. SOLUTION: This method for producing optically active 1-aryl-2-fluoro-substituted ethylamine is provided by performing the dehydrating condensation of a fluoro-substituted methyl aryl ketone with an optically active 1-phenylethylamine in the presence of an acid catalyst to convert them to an optically active imine, further asymmetrically reducing the optically active imine to convert it to a mixture of optically active secondary amine diastereomers, inducing the diastereomer mixture of the optically active secondary amines to their salts and recrystallizing to obtain the optically active secondary amine having a high diastereomeric excess rate or its salt, and hydrolyzing the optically active secondary amine or its salt in the presence of a group VIII transition metal catalyst to obtain the optically active 1-aryl-2-fluoro-substituted ethylamine or its salt. COPYRIGHT: (C)2005,JPO&NCIPI
    • 待解决的问题:提供一种光学活性的1-芳基-2-氟取代的乙胺,成为药物和农药的候选化合物的重要中间体及其制备方法。 解决方案:通过在酸催化剂的存在下进行氟取代的甲基芳基酮与光学活性1-苯基乙胺的脱水缩合来提供该光学活性1-芳基-2-氟取代的乙胺的制备方法 将其转化为光学活性亚胺,进一步不对称地还原光学活性亚胺以将其转化为光学活性仲胺非对映体的混合物,将光学活性仲胺的非对映异构体混合物引入其盐并重结晶以获得光学活性二级 胺,其具有高非对映体过量速率或其盐,并在VIII族过渡金属催化剂存在下水解光学活性仲胺或其盐以获得光学活性1-芳基-2-氟取代的乙胺或其盐。 版权所有(C)2005,JPO&NCIPI
    • 6. 发明专利
    • Method for producing trifluoromethyl-substituted acetophenone
    • 生产三氟甲磺酸取代的乙酰丙酮的方法
    • JP2005213149A
    • 2005-08-11
    • JP2004018316
    • 2004-01-27
    • Central Glass Co Ltdセントラル硝子株式会社
    • ISHII AKIHISAINOMIYA NORITOUEDA KOJIYASUMOTO MANABUKANAI MASATOMIKURIYAMA KATSUOTSUKA TAKASHISUDO KATSUHIDE
    • C07C45/30C07C49/80
    • PROBLEM TO BE SOLVED: To provide an industrial method for producing a trifluoromethyl-substituted acetophenone which is an important intermediate for medicines and agrochemicals.
      SOLUTION: The method for producing the trifluoromethyl-substituted acetophenone is carried out by oxidizing a 1-trifluoromethyl-substituted phenylethanol with an aqueous solution of sodium hypochlorite at ≥10% available chlorine concentration in the presence of acetic acid in an amount of ≤20 equivalents based on the 1-trifluoromethyl-substituted phenylethanol. The method for production is remarkably improved in productivity and operation efficiency and is a more inexpensive method for production. The selectivity of the reaction is ultrahigh and impurities difficult to separate are scarcely formed as a by-product. Thereby, the method is extremely effective for industrial production in high purity.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种三氯甲基取代的苯乙酮的生产方法,其是药物和农药的重要中间体。 解决方案:制备三氟甲基取代的苯乙酮的方法是通过在乙酸存在下以≥10%有效氯浓度的次氯酸钠水溶液氧化1-三氟甲基取代的苯基乙醇,其量为 基于1-三氟甲基取代的苯乙醇,≤20当量。 生产率和运行效率显着地提高了生产方法,并且是更廉价的生产方法。 反应的选择性超高,难以分离的杂质几乎不作为副产物形成。 因此,该方法对于高纯度的工业生产是非常有效的。 版权所有(C)2005,JPO&NCIPI
    • 9. 发明专利
    • Method for producing 4-fluoroproline derivative
    • 生产4-氟吡啶衍生物的方法
    • JP2005336151A
    • 2005-12-08
    • JP2004215526
    • 2004-07-23
    • Central Glass Co Ltdセントラル硝子株式会社
    • ISHII AKIHISAKURIYAMA KATSUSUDO KATSUHIDEOTSUKA TAKASHIYASUMOTO MANABUINOMIYA NORITOUEDA KOJITSURUTA HIDEYUKI
    • C07D207/16C07B53/00
    • PROBLEM TO BE SOLVED: To provide a method for industrially producing a 4-fluoroproline derivative which is an important intermediate for a pharmaceutical. SOLUTION: This method for producing the 4-fluoroproline derivative comprises making a protected 4-hydroxyproline compound react with trifluoromethanesulfonyl fluoride in the presence of an organic base, wherein an organic base which is industrially produced at a low cost and generally used, such as triethylamine, is used as the organic base. The method is characterized so that trifluoromethanesulfonylation of the protected 4-hydroxyproline compound is well progressed by using the trifluoromethanesulfonyl fluoride and subsequent fluorine substitution reaction is well progressed only by of a hydrofluoric acid salt or complex of the organic base, such as the trimethylamine, which is by-produced in an equivalent amount in a reaction system of the trifluoromethanesulfonylation. COPYRIGHT: (C)2006,JPO&NCIPI
    • 待解决的问题:提供工业生产作为药物重要中间体的4-氟脯氨酸衍生物的方法。 解决方案:制备4-氟脯氨酸衍生物的方法包括在有机碱的存在下使受保护的4-羟基脯氨酸化合物与三氟甲磺酰氟反应,其中以低成本和通常使用的工业生产的有机碱, 例如三乙胺用作有机碱。 该方法的特征在于,通过使用三氟甲磺酰氟,保护的4-羟基脯氨酸化合物的三氟甲磺酰化进行得很好,随后的氟取代反应仅通过氢氟酸盐或有机碱如三甲胺的络合物进行,其中 在三氟甲磺酰化反应体系中以相当量副产。 版权所有(C)2006,JPO&NCIPI