PROCESS FOR THE PREPARATION OF INTERMEDIATES NAMELY 3,5-DIMETHYL-4-METHOXYPYRIDINE-N-OXIDE AND 2,3,5-TRIMETHYL-4-METHOXYPYRIDINE-N-OXIDE USEFUL FOR THE PREPARATION OF OMEPRAZOLE

摘要

Novel compounds of the formula IMAGE wherein R is H or CH3, a process for their preparation, and their use as intermediates in the preparation of pharmaceutically useful compounds, e.g. substituted benzimidazoles containing a pyridine radical, i.a. omeprazole.