dimethyl-(4-methyl-4,5-dihydro-oxazol-2-yl)-amine

N,N,5-trimethyl-4,5-dihydro-1,3-oxazol-2-amine

4-tert-butyl-N,N-dimethyl-1,3-thiazol-2-amine

2-(dimethylamino)-6-ethyl-1,3-oxazin-4-one

6-benzyl-2-(dimethylamino)-1,3-oxazin-4-one