Sulfhydantoins as phosphate isosteres for use as phosphatase inhibitors in the treatment of cancer and autoimmune disorders

The present invention relates to novel phosphate isosteres. The invention relates to compounds having a sulfhydantoin or a reverse sulfhydantoin moiety, uses thereof, and related methods. The present invention relates to compounds of formula I or II: or pharmaceutically acceptable salts thereof; wherein Q, T, m, and X are as described herein. These compounds are inhibitors of phosphatases, particularly inhibitors of SHP-2. The invention also provides pharmaceutically acceptable compositions comprising the compounds of the invention and methods of utilizing these compounds and compositions in the treatment of various phosphatase-mediated diseases.