... 603 The Adamantyl Group in Medicinal Agents. ... Chemistry.-For the preparation of the necessary quantities of 1,3,5-trimethyladaniantane, the dlBr3- catalyzed rearrangement of perhydrofl~orene ... 100 ml), a solution of 3,5,7-trimethyladamantan-l-o1 (4.9 g) and pyridine (10 ml) in ...