p. 6953 - 6956
(2007/10/03)(4S,5R)-1-((4R,5S)-2,5-Dimethyl-4,5-dihydro-oxazole-4-carbonyl)-3,4-dimethyl-5-phenyl-imidazolidin-2-one
(4S,5R)-1-((2R,3S)-1-Acetyl-3-methyl-aziridine-2-carbonyl)-3,4-dimethyl-5-phenyl-imidazolidin-2-one
(4R,5S)-1,5-Dimethyl-3-((2R,3S)-3-methyl-aziridine-2-carbonyl)-4-phenyl-imidazolidin-2-one