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    • 18. 发明申请
    • PROCESS FOR THE PREPARATION OF PYRIDINE COMPOUNDS
    • 制备吡啶化合物的方法
    • US20070249662A1
    • 2007-10-25
    • US11737852
    • 2007-04-20
    • Pietro ALLEGRINIMarcello RaspariniGabriele RazzettiRoberto RossiGianpiero Ventimiglia
    • Pietro ALLEGRINIMarcello RaspariniGabriele RazzettiRoberto RossiGianpiero Ventimiglia
    • A61K31/4439A61K31/4745C07D471/02C07D403/02
    • C07D471/04C07D401/12
    • A process for preparation of a compound of formula (I), both as the isomeric mixture and individual isomers, wherein Q is ═CR8— or ═N—; each R1, R2, R3, R4 is independently selected from hydrogen, halogen, hydroxy; nitro; C1-C6 alkyl optionally substituted with hydroxy; alkylthio C1-C6; C1-C6 alkoxy optionally substituted with halogen or C1-C6 alkoxy; phenyl-C1-C6 alkyl; phenyl-C1-C6 alkoxy; and —N(RaRb) wherein each Ra and Rb is independently hydrogen or C1-C6 alkyl or Ra and Rb, taken together with the nitrogen atom they are linked to, form a saturated heterocyclic ring; andeach R5, R6, R7, R8 is independently selected from hydrogen, halogen, hydroxy; C1-C6 alkyl optionally substituted with hydroxy; alkylthio C1-C6; C1-C6 alkoxy optionally substituted with halogen; C1-C6 alkyl-carbonyl, C1-C6 alkoxy-carbonyl, and oxazol-2-yl; comprising converting a compound of formula (IV), to said compound of formula (I), in the presence of a catalyst, if necessary in an organic solvent.
    • 制备式(I)化合物的方法,均为异构体混合物和各异构体,其中Q为-CR 8 - 或-N-; 每个R 1,R 2,R 3,R 4,R 4独立地选自氢,卤素,羟基; 硝基 任选被羟基取代的C 1 -C 6烷基; 烷硫基C 1 -C 6烷基; 任选被卤素或C 1 -C 6烷氧基取代的C 1 -C 6烷氧基; 苯基-C 1 -C 6烷基; 苯基-C 1 -C 6烷氧基; 和-N(RaRb),其中每个R a和R b独立地是氢或C 1 -C 6烷基或R a和R b与它们所连接的氮原子一起 形成饱和杂环; 并且每个R 5,R 6,R 7,R 8和R 8独立地选自氢,卤素,羟基 ; 任选被羟基取代的C 1 -C 6烷基; 烷硫基C 1 -C 6烷基; 任选被卤素取代的C 1 -C 6烷氧基; C 1 -C 6烷基 - 羰基,C 1 -C 6烷氧基 - 羰基和恶唑-2(C 1 -C 6) - 基; 包括在催化剂存在下,如果需要在有机溶剂中将式(Ⅳ)化合物转化为所述式(Ⅳ)化合物。