| 摘要 |
The present invention concerns new pyridyloxy-phenoxy-alkanecarboxylic acid derivatives of the formula <IMAGE> wherein A is hydrogen, halogen, alkyl, alkoxy, cyano, nitro or carbothiamide B is hydrogen, halogen, alkyl, cyano, mono- or dialkylamino, alkoxy-carbonyl or carbothiamide C is hydrogen, halogen, cyano, nitro or carbothiamide D is hydrogen, halogen, alkyl, mono- or dialkylamino R1 is hydrogen, alkyl, alkoxyalkyl or benzyl R is the rest of the acid a salt or an ester, WITH THE PROVISO THAT IF THE PYRIDINE RING IS SUBSTITUTED BY HALOGEN AND/OR ALKYL AND C is also halogen, then the radicals A, B and D must contain no less than two halogen atoms or alkyl radicals. |
