3,4-Dichloro-N-((3-chloro-2-phenyl-6-quinoxalinyl)methyl)-N-(2-propynyl)aniline AIDS-140246 AIDS140246 N-((3-Chloro-2-phenyl-6-quinoxalinyl)methyl)-N-(3,4-dichlorophenyl)-N-(2-propynyl)amine NSC651630