3-Phenyl-7-((3,4,5-trimethoxy(2-propynyl)anilino)methyl)-2-quinoxalinamine AIDS-141344 AIDS141344 N-((3-Amino-2-phenyl-6-quinoxalinyl)methyl)-N-(2-propynyl)-N-(3,4,5-trimethoxyphenyl)amine NSC656629