PTP-1B inhibitors: Cyclopenta[d][1,2]-oxazine derivatives

A series of novel cyclopenta[d][1,2]-oxazine derivatives was prepared and evaluated for their inhibitory activity toward protein tyrosine phosphatase 1B (PTP-1B). Compound 6s was found to be an inhibitor of PTP-1B with nanomolar IC50 value and high level of selectivity over other recombinant phosphatases.

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