| CPC A61K 31/519 (2013.01) [A61K 31/506 (2013.01); A61P 35/00 (2018.01)] | 26 Claims |
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1. A method of treating cancer in a patient in need thereof, said method comprising administering to said patient a therapeutically effective amount of a compound having the structure of Formula (Ia), or a pharmaceutically acceptable salt or solvate thereof:
![]() wherein said cancer is non-small cell lung cancer, esophageal cancer, stomach cancer, or brain tumor; and wherein said patient has failed at least one anti-cancer agent therapy, wherein said anti-cancer agent is an EGFR TK inhibitor.
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