5-ARYL OR 5-HETEROARYL SUBSTITUTED 3-HYDROXYPYRIDIN-2-YL-CARBONYLAMINO-ALKANOIC ACID DERIVATIVES AND SALTS THEREOF AS WELL AS THEIR PREPARATION FROM THE RESPECTIVE 3-HYDROXY-PICOLINIC ACID DERIVATIVES

摘要

The present invention relates to 5-aryl or 5-heteroaryl substituted 3-hydroxypyridin-2-yl-carbonylamino-alkanoic acid derivatives and salts thereof as well as to their preparation from the respective 3-hydroxy-picolinic acid derivatives. The final compounds are prolyl hydroxylase inhibitors.