N-butyl-2-cyclopentyl-N-(4-methyl-1,3-oxazol-2-yl)acetamide

N-butyl-N-(4-cyclohexyl-1,3-oxazol-2-yl)-2-methylpropanamide

N-butyl-2-methyl-N-(4-methyl-1,3-oxazol-2-yl)butanamide

cyclobutanecarboxylic acid butyl-(4-methyl-oxazol-2-yl)-amide