Ethanol → Esomeprazole

Participants

Reaction Steps

The procedure set forth in Example 2 is repeated except that ethanol is employed as a solvent in place of DMF and the resulting structure is shown by various X-ray crystal diffraction and/or Raman spectroscopy to contain between about 82 and 85 percent (w/w) of 6-methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)-methyl]sulfinyl]-1H-benzimidazole and between about 15 and 18 percent (w/w) of 5-methoxy 2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)-methyl]sulfinyl]-1H-benzimidazole.

Provenance & Evidence