专利号:US-6437139-B1 优先权日:1997-05-06 标题 :Synthesis of pharmaceutically useful pyridine derivatives 发明人:ZOGHBI MICHEL; CHEN LIQUIN 权利人:PDI RES LAB INC 摘要:A process is provided for the preparation of compounds of formula I,useful in the preparation of compounds such as Omeprazole, Lansoprazole and Pantoprazole, wherein R1=H or CH3, R2=H or CH3, R3=Alkoxy (1-4C), OCH2CF3, Cyano, Hydrogen, Halogen, Acetoxy or Aryloxy, any electron withdrawing group or salts (organic or inorganic) of electron donating groups, R=Alkoxy, Hydroxy, Halogen, Activated ester, Tosylate, Mesylate, Thiol or Xanthyl, wherein the process for the preparation of compound of formula I employs a free radical reaction to functionalize the 2-position.
专利号:JP-H11124376-A 优先权日:1997-08-12 标题:Synthesis of organic compounds
参考文献:10.1023/b:jocc.0000047817.96074.df 摘要:Index abstracts. Journal of Chemical Crystallography. 2004 Oct;34(10):641–5. doi: 10.1023/b:jocc.0000047817.96074.df. 参考文献:10.1023/b:jocc.0000047637.06637.bb 摘要:Jin ZM, Li ZG, Li XF, Hu ML, Jin ZS. Crystal structure of bis(2,3,5-trimethylpyridine N-oxide) 2,4,6-trinitrophenolate: Cation complex tied by the extremely strong OHO hydrogen bonding. Journal of Chemical Crystallography. 2004 Oct;34(10):653–5. doi: 10.1023/b:jocc.0000047637.06637.bb.