Researchers from Hangzhou Innogate Pharma Co. Ltd. and Innorace Biopharma Co. Ltd. have disclosed tyrosine-protein phosphatase non-receptor type 1 (PTPN1; PTP-1B) and/or tyrosine-protein phosphatase non-receptor type 2 (PTPN2; TCPTP) inhibitors. They are reported to be useful for the treatment of cancer, metabolic dysfunction-associated steatotic liver disease (MASLD; NAFLD), obesity and diabetes.