Omeprazole Impurity 69

4-Desmethoxy-4-chloro Omeprazole N-Oxide is derived from 4-Chloro-2-(chloromethyl)-3,5-dimethylpyridine (C368185), which has been used as a reactant in the preparation of 2-Amino-6-halopurine Hsp60 inhibitors that exhibit antitumor activity.