This disclosure concerns novel quinazoline compounds of Formula (I) as defined in the specification and compositions comprising such novel compounds. These compounds are useful anticancer agents, especially in inhibiting the function of the EGF receptor tyrosine kinases, HER1 tyrosine kinase, and HER2 tyrosine kinase. Thus, the disclosure also concerns a method of treating hyperproliferative diseases or conditions, such as various cancers and benign prostate hyperplasia (BPH), by use of these novel compounds or a composition comprising such novel compounds.
