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    • 18. 发明专利
    • Optically active (r)-1-(4-trifluoromethylphenyl) ethylamine
    • 光学活性(R)-1-(4-三氟甲基苯基)乙基胺
    • JP2003335737A
    • 2003-11-28
    • JP2002146983
    • 2002-05-21
    • Central Glass Co Ltdセントラル硝子株式会社
    • ISHII AKIHISAYASUMOTO MANABUKURIYAMA KATSUKANAI MASATOMIINOMIYA NORITO
    • C07C209/88C07C211/27C07C211/29C07C251/24
    • C07C251/24C07C211/29
    • PROBLEM TO BE SOLVED: To provide a new optically active (R)-1-(4-trifluoromethylphenyl) ethylamine useful as an important intermediate for medicines and agrochemicals.
      SOLUTION: This optically active (R)-1-(4-trifluoromethylphenyl) ethylamine can be synthesized in a high optical purity and in a good yield by subjecting 4'-(trifluoromethyl)acetophenone and optically active (R)-1-phenylethylamine to a dehydrative condensation under an acidic condition, asymmetrically reducing the obtained optically active imine into the optically active secondary amine, deriving the secondary amine into its phthalate or benzene sulfonate which are the organic acid salts, recrystallizing and purifying the organic acid salt, hydrolyzing the purified organic acid salt to produce the optically active (R)-1-(4- trifluoromethylphenyl)ethylamine phthalate or benzene sulfonate as the organic acid salt, and then neutralizing the product.
      COPYRIGHT: (C)2004,JPO
    • 要解决的问题:提供用作药物和农药的重要中间体的新的光学活性(R)-1-(4-三氟甲基苯基)乙胺。 解决方案:该光学活性(R)-1-(4-三氟甲基苯基)乙胺可以通过使4' - (三氟甲基)苯乙酮和光学活性(R)-1 - 苯基乙胺在酸性条件下脱水缩合,将得到的光学活性亚胺不对称地还原成光学活性仲胺,将仲胺导入作为有机酸盐的邻苯二甲酸酯或苯磺酸盐,重结晶并纯化有机酸盐, 水解纯化的有机酸盐,得到光学活性(R)-1-(4-三氟甲基苯基)乙胺邻苯二甲酸酯或苯磺酸盐作为有机酸盐,然后中和产物。 版权所有(C)2004,JPO
    • 20. 发明专利
    • Method for producing 4-fluoroproline derivative
    • 生产4-氟吡啶衍生物的方法
    • JP2006008534A
    • 2006-01-12
    • JP2004184099
    • 2004-06-22
    • Central Glass Co Ltdセントラル硝子株式会社
    • ISHII AKIHISAKURIYAMA KATSUSUDO KATSUHIDEOTSUKA TAKASHIYASUMOTO MANABUINOMIYA NORITOUEDA KOJITSURUTA HIDEYUKI
    • C07D207/16C07B53/00C07B61/00
    • PROBLEM TO BE SOLVED: To provide a method for industrially producing a 4-fluoroproline derivative being an important intermediate for a medicine.
      SOLUTION: The method for producing a 4-fluoroproline derivative comprises reacting a 4-hydroxyproline-protected compound with trifluoromethanesulfonyl fluoride in the presence of an organic base such as triethylamine, lutidine, collidine, etc., and (a salt or a complex composed of an organic base such as trimethylamine, pyridine, etc., and hydrogen fluoride). The first characteristic excellently advances dehydroxyfluorination reaction of a 4-hydroxyproline-protected compound by using trifluoromethanesulfonyl fluoride as a perfluoroalkanesulfonyl fluoride. The second characteristic excellently advances the dehydroxyfluorination reaction even in the presence of a fluorinating agent such as triethylamine-hydrogen trifluoride complex or (a salt or a complex composed of an organic base such as pyridine, etc., and hydrogen fluoride) except diisopropylethylamine-hydrogen trifluoride complex.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 待解决的问题:提供一种工业生产作为药物的重要中间体的4-氟脯氨酸衍生物的方法。 解决方案:4-氟脯氨酸衍生物的制备方法包括在有机碱如三乙胺,二甲基吡啶,可力丁等存在下使4-羟基脯氨酸保护的化合物与三氟甲磺酰氟反应,和(盐或 由有机碱如三甲胺,吡啶等组成的络合物和氟化氢)。 第一个特征通过使用三氟甲磺酰氟作为全氟烷基磺酰氟,显着地提高了4-羟基脯氨酸保护的化合物的脱羟基氟化反应。 第二个特征即使在氟化剂如三乙胺 - 三氟化氢络合物存在下也可以进行脱羟基氟化反应,或者除了二异丙基乙胺 - 氢以外(或由吡啶等有机碱组成的络合物和氟化氢) 三氟化合物。 版权所有(C)2006,JPO&NCIPI