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    • 13. 发明授权
    • Method for producing optically active 2-arylpiperazine derivative
    • 光学活性2-芳基哌嗪衍生物的制备方法
    • US08273883B2
    • 2012-09-25
    • US12449460
    • 2008-02-05
    • Masatoshi OhnukiAkira NishiyamaMasaru Mitsuda
    • Masatoshi OhnukiAkira NishiyamaMasaru Mitsuda
    • C07D241/04C07D295/00
    • C07B53/00C07D241/04
    • The objective of the present invention is to produce an optically active 2-arylpiperazine derivative useful as a synthetic intermediate for pharmaceutical products and agricultural chemicals from inexpensive and readily available starting material by an industrially practicable method. The objective can be accomplished by treating an optically active substituted aminodiol derivative produced from an optically active styrene oxide derivative with a sulfonating agent in the presence of a base, and then reacting an amine compound to obtain the 2-arylpiperazine derivative. Especially, an optically active 1-unsubstituted-2-arylpiperazine derivative can be produced by treating an optically active 1-allyl-2-arylpiperazine derivative with water in the presence of a transition metal catalyst for deallylation.
    • 本发明的目的是通过工业上可行的方法从便宜且容易获得的原料制备用作药物产品和农药的合成中间体的光学活性2-芳基哌嗪衍生物。 该目的可以通过在碱的存在下用磺化剂处理由光学活性苯乙烯氧化物衍生物产生的光学活性取代的氨基二醇衍生物,然后使胺化合物反应得到2-芳基哌嗪衍生物来实现。 特别地,光学活性的1-未取代-2-芳基哌嗪衍生物可以通过在过渡金属催化剂的存在下用水处理光学活性的1-烯丙基-2-芳基哌嗪衍生物来进行脱气。
    • 19. 发明授权
    • Method of producing peptide
    • 生产肽的方法
    • US08716439B2
    • 2014-05-06
    • US12224543
    • 2006-07-31
    • Hiroshi MuraoKen-ichiro MorioMasaru Mitsuda
    • Hiroshi MuraoKen-ichiro MorioMasaru Mitsuda
    • A61K38/00
    • C07K1/061C07K1/02C07K1/14C07K5/06078C07K5/06095C07K5/0806C07K5/0808C07K5/101
    • The present invention is related to a method of producing a peptide, characterized in contacting a reaction mixture with a base after a condensation reaction to hydrolyze while a basic condition is maintained until a ratio of a remaining unreacted active ester of an acid component is decreased to 1% or less in a liquid phase peptide synthesis method. According to the invention, a target peptide of high purity can be simply and efficiently produced by a continuous liquid phase synthesis method. Further, the present invention is related to a method of producing a peptide, characterized in using an amide-type solvent immiscible with water in a liquid phase peptide synthesis method. According to the invention, various peptides can be produced by the liquid phase synthesis method without being restricted by the amino acid sequence of the target peptide.
    • 本发明涉及一种生产肽的方法,其特征在于在缩合反应之后将反应混合物与碱反应以在碱性条件保持下进行水解,直到酸组分的剩余未反应的活性酯的比例降低至 在液相肽合成方法中为1%以下。 根据本发明,可以通过连续液相合成法简单有效地制备高纯度的靶肽。 此外,本发明涉及一种制备肽的方法,其特征在于在液相肽合成方法中使用与水不混溶的酰胺型溶剂。 根据本发明,可以通过液相合成法制备各种肽,而不受目标肽的氨基酸序列的限制。