abstract |
PURPOSE: To produce a hydroxide of a nitrogen-containing heterocyclic com pound in high purity and yield by using a microorganism. n CONSTITUTION: Nicotinic acid, pyrazinic acid or pyridine-3-sulfonic acid is treated with a microorganism (its cultured liquid, cell or treated cell) belonging to genus Comomanas, Serratia, Alcaligenes or Pseudomonas and capable of hydroxylating nicotinic acid, pyrazinic acid or pyridine-3-sulfonic acid to obtain 6-hydroxynicotinic acid, 5-hydroxypyrazine-2-carboxylic acid or 6-hydroxypyridine-3-sulfonic acid, respectively. n COPYRIGHT: (C)1992,JPO&Japio |