会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 7. 发明授权
    • Method for producing 3-substituted 2-chloro-5-fluoro-pyridine or its salt
    • 制备3-取代的2-氯-5-氟 - 吡啶或其盐的方法
    • US07414136B2
    • 2008-08-19
    • US11265179
    • 2005-11-03
    • Yasushi MatsumuraNobuaki MoriYasuhiro Yamada
    • Yasushi MatsumuraNobuaki MoriYasuhiro Yamada
    • C07D213/85C07D213/80
    • C07D213/80
    • To provide a method for producing a 3-substituted 2-chloro-5-fluoro-pyridine or its salt in high yield from a readily available material through a short process under mild reaction conditions using a reagent which is easy for handling and simple in the reaction operation. Namely, a method for producing the following compound (2) or its salt which comprises selectively reducing a chlorine atom at the 6-position of the following compound (1) or its salt, is provided. Further, a method for producing the following compound (4) or its salt which comprises substituting a Z1 group of the following compound (2) or its salt obtained by the reduction reaction, by a Z2 group, is provided. Here, Z1 is —CO2R1, etc., and R1 is a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, an aralkyl group or a cycloalkyl group. Z2 is a group different from Z1 and is —CO2R5, etc., and R5 is an alkyl group, an alkenyl group, an aryl group, an aralkyl group or a cycloalkyl group.
    • 提供一种通过使用容易处理的试剂在温和的反应条件下通过短时间过程从容易获得的材料以高产率制备3-取代的2-氯-5-氟 - 吡啶或其盐的方法, 反应操作。 即,提供了下述化合物(1)或其盐选择性还原6-位的氯原子的下述化合物(2)或其盐的制造方法。 此外,制备下列化合物(4)或其盐的方法,该方法包括用下列化合物(2)或其还原反应得到的盐代替Z 2 组。 这里,Z 1是-CO 2 R 1等,R 1是氢原子, 烷基,烯基,芳基,芳烷基或环烷基。 Z 2是与Z 1不同的基团,并且是-CO 2 R 5等,R 2 烷基,烯基,芳基,芳烷基或环烷基。
    • 9. 发明申请
    • Method for producing 3-substituted 2-chloro-5-fluoro-pyridine or its salt
    • 制备3-取代的2-氯-5-氟 - 吡啶或其盐的方法
    • US20060058529A1
    • 2006-03-16
    • US11265179
    • 2005-11-03
    • Yasushi MatsumuraNobuaki MoriYasuhiro Yamada
    • Yasushi MatsumuraNobuaki MoriYasuhiro Yamada
    • C07D213/84C07D213/46
    • C07D213/80
    • To provide a method for producing a 3-substituted 2-chloro-5-fluoro-pyridine or its salt in high yield from a readily available material through a short process under mild reaction conditions using a reagent which is easy for handling and simple in the reaction operation. Namely, a method for producing the following compound (2) or its salt which comprises selectively reducing a chlorine atom at the 6-position of the following compound (1) or its salt, is provided. Further, a method for producing the following compound (4) or its salt which comprises substituting a Z1 group of the following compound (2) or its salt obtained by the reduction reaction, by a Z2 group, is provided. Here, Z1 is —CO2R1, etc., and R1 is a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, an aralkyl group or a cycloalkyl group. Z2 is a group different from Z1 and is —CO2R5, etc., and R5 is an alkyl group, an alkenyl group, an aryl group, an aralkyl group or a cycloalkyl group.
    • 提供一种通过使用容易处理的试剂在温和的反应条件下通过短时间过程从容易获得的材料以高产率制备3-取代的2-氯-5-氟 - 吡啶或其盐的方法, 反应操作。 即,提供了下述化合物(1)或其盐选择性还原6-位的氯原子的下述化合物(2)或其盐的制造方法。 此外,制备下列化合物(4)或其盐的方法,该方法包括用下列化合物(2)或其还原反应得到的盐代替Z 2 组。 这里,Z 1是-CO 2 R 1等,R 1是氢原子, 烷基,烯基,芳基,芳烷基或环烷基。 Z 2是与Z 1不同的基团,并且是-CO 2 R 5等,R 2 5是烷基,烯基,芳基,芳烷基或环烷基环