The method for preparing the dicarboxylic acid derivatives of 5 methoxypicoline 2,3 of substitution

The method for preparing the dicarboxylic acid derivatives of 5 methoxypicoline 2,3 of substitution

  • CN 102,245,575 B
  • Filed: 12/07/2009
  • Issued: 07/28/2017
  • Est. Priority Date: 12/08/2008
  • Status: Active Grant
First Claim
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1. a kind of 2,3- bis- for preparing formula (I) replaces the method for -5- methoxypicolines:

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