Certain pyridyl-N-oxide intermediates for the preparation of omeprazole

Abstract

Novel compounds of the formula ##STR1## wherein R is H or CH.sub.3, 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.

Dependencies are inferred from the claim text.