8-methanoquinazoline 1 and 3-chloro-bornano[1,2,4]triazine 7, the novel 5,8-methanoquinazolines 5a-b and bornano[1,2,4]triazines 10a-b fused with imidazole and pyrimidine were prepared. None of these compounds showed any satisfactory central nervous system stimulant activities.