The present invention provides new tyrphostin derivatives acting as protein tyrosine kinase (PTK) inhibitors and receptor tyrosine kinase (RTK) inhibitors, and/or which directly or indirectly affect proteins in the PTK-mediated signal transduction pathway, methods of their preparation, pharmaceutical compositions including such compounds, and methods of using these compounds and compositions, especially as chemotherapeutic agents for preventions and treatments of PTK and RTK related disorders such as metabolic, fibrotic, and cell proliferative disorders, in particular psoriasis and cancer.
