2-​Propenamide, N-​[4-​[(3-​chloro-​4-​fluorophenyl)​amino]​-​7-​[3-​methyl-​3-​(4-​methyl-​1-​piperazinyl)​-​1-​butyn-​1-​yl]​-​6-​quinazolinyl]​-