1,4-Oxazepine, hexahydro-3,4,6, 6-tetramethyl-7-(4-morpholinyl)-2-phenyl- 3,4,6,6-Tetramethyl-7-(4-morpholinyl)-2-phenyl-1,4-oxazepane 76503-78-1 AIDS-129454 AIDS129454 NSC348723