Prilosec and Nexium ("the little purple pill") are widely used to treat acid reflu...

Prilosec and Nexium ("the little purple pill") are widely used to treat acid reflux and prevent the damage that stomach acid can do to the lining of the esophagus. Prilosec is the racemic form of omeprazole; Nexium is (S)-omeprazole. Write a structural formula for (S)-omeprazole clearly showing its stereochemistry. (For a hint, see Section 7.17.)