Duke University

Amy Lynn McNulty

Eric John Toone

Virginia Byers Kraus

Compounds of the formula: are described wherein: Ais ascorbic acid, dehydroascorbic acid, ascorbyl-2-phosphate, an analog thereof, or a salt thereof; L is a linking group coupled to Aat the C5 or C6 position thereof; and Bis an active agent such as an imaging agent or therapeutic agent (e.g. a bisphosphonate), along with pharmaceutically acceptable salts and prodrugs thereof. The compounds are useful for, among other things, improving cartilage uptake of active agents administered for joint diseases such as osteoarthritis and rheumatoid arthritis, and for improving gastrointestinal absorption of bisphosphonates.

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Bahama, NC, United States of America

Amy Lynn McNulty