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    • 6. 发明申请
    • A PROCESS FOR THE PREPARATION OF TRANS-(2R)-4-SUBSTITUTED-PIPECOLIC ACIDS AND ESTERS THEREOF, AND INTERMEDIATE COMPOUNDS USED THEREIN
    • 一种制备转(2R)-4-取代的邻苯二甲酸及其酯的方法及其使用的中间体化合物
    • WO2011039290A1
    • 2011-04-07
    • PCT/EP2010/064513
    • 2010-09-30
    • ENANTIA, S.L.RIERA ESCALÉ, AntoniCOMELY, Alexander ChristianGINESTA BUCH, Xavier
    • RIERA ESCALÉ, AntoniCOMELY, Alexander ChristianGINESTA BUCH, Xavier
    • C07D211/48C07D401/12
    • C07D211/48C07D401/12
    • Process for the preparation of a compound of formula (III) wherein R 1 is a (C 1 - C 10 )-alkyl radical or a radical of one of the known ring systems with 1 -3 rings, the rings being aromatic and being isolated or partially/totally fused and having 5-6 members, being each member independently selected from C, CH, N, NH, O, S; and the ring system being optionally substituted by one or more radicals independently selected from (C 1 -C 6 )-alkyl, (C 1 -C 6 )-alkoxy, and halogen; the process comprising: a) reacting a (C 1 -C 10 )-alkyl lithium, or a lithium salt of the ring system as defined above with a copper salt to obtain an organocuprate compound, and b) reacting the organocuprate compound obtained in step a) with di( tert -butyl) (2R)-3,6-dihydro-6-oxo-1,2(2H)- pyridinedicarboxylatejn an inert solvent system in the presence of a Lewis acid. Intermediate IV is new and is useful as an intermediate for the preparation of pharmaceutically active ingredients such as Argatroban.
    • 制备式(III)化合物的方法,其中R 1是(C 1 -C 10) - 烷基或具有1〜3个环的已知环体系之一的基团,所述环是芳族的并被隔离或部分/ 完全融合并具有5-6个成员,各自独立地选自C,CH,N,NH,O,S; 并且所述环系统任选地被一个或多个独立地选自(C 1 -C 6) - 烷基,(C 1 -C 6) - 烷氧基和卤素的基团取代; 所述方法包括:a)使(C1-C10) - 烷基锂或如上定义的环系的锂盐与铜盐反应,得到有机起始化合物,和b)使步骤a)中得到的有机铜化合物, 与二(叔丁基)(2R)-3,6-二氢-6-氧代-1,2(2H) - 吡啶二羧酸二乙酯在惰性溶剂体系中在路易斯酸存在下反应。 中间体IV是新的,并且可用作制备药学活性成分如阿加曲班的中间体。