Synonyms: U 69593;N-Methyl-N-(7-(1-pyrrolidinyl)-1-oxaspiro(4,5)dec-8-yl)benzeneacetamide;U 69,593;U-69593;U69593;Benzeneacetamide, N-methyl-N-((5R,7S,8S)-7-(1-pyrrolidinyl)-1-oxaspiro(4.5)dec-8-yl)-;Benzeneacetamide, N-methyl-N-(7-(1-pyrrolidinyl)-1-oxaspiro(4.5)dec-8-yl)-, (5alpha,7alpha,8beta)-(-)-;2-(3,4-dichlorophenyl)-N-methyl-N-[7-(pyrrolidin-1-yl)-1-oxaspiro[4.5]dec-8-yl]acetamide;N-methyl-2-phenyl-N-[(5R,7S,8S)-7-(pyrrolidin-1-yl)-1-oxaspiro[4.5]dec-8-yl]acetamide;N-methyl-2-phenyl-N-[(5S,7R,8R)-7-(pyrrolidin-1-yl)-1-oxaspiro[4.5]dec-8-yl]acetamide