1-Ethyl-4-((morpholin-2-one)ethyl)-3,3-diphenyl-2-pyrrolidinone 2-Ketodoxapram 3-Morpholinone, 4-(2-(1-ethyl-5-oxo-4,4-diphenyl-3-pyrrolidinyl)ethyl)- 42595-88-0 Ahr 5955 Ahr-5955