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An Introduction to Medicinal Chemistry

An Introduction to Medicinal Chemistry

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Famotidine and nizatidine 309<br />

• Replacing the sulfur a<strong>to</strong>m with a methylene unit leads <strong>to</strong> a drop in activity.<br />

• Placing the sulfur next <strong>to</strong> the ring lowers activity.<br />

• Replacing the furan ring with more hydrophobic rings such as phenyl or thiophene<br />

reduces activity.

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