Patent ID: 6121454
Filing Date: 2000-09-19
Classification: C07D

Abstract:
A process of preparing a drug selected from the group consisting of omeprazole lanzoprazole and pantoprazole, comprising reacting a compound of the formula II ##STR36## under free radical reaction conditions with a radical R.sup.4 to form a compound of formula III ##STR37## wherein R.sup.1 =H or CH.sub.3R.sup.2 =H or CH.sub.3R.sup.3 =Alkoxy (1-4C), OCH.sub.2 CF.sub.3, Cyano, Hydrogen, Halogen, Acetoxy or Aryloxy, any electron withdrawing group or salts (organic or inorganic) of electron donating groupsR.sup.4 =Alkyl, Acyl, Amides, Alkoxycarbonyl, Aryloxycarbonyl, Carboxylic Acid, Phenoxymethyl, or Hydroxymethyl and further reacting compound III to form the drug.