Abstract The 'click synthesis' of some novel O-substituted oximes, 7a–7t, which contain 1, 2, 3-triazolediyl residues, as new analogs of β-adrenoceptor antagonists is described (Schemes 1–4). The synthesis of these compounds was achieved in four to five steps. The formation of oximes of 9H-fluoren-9-one and benzophenone, ie, 9a and 9b, respectively, followed by their reaction with propargyl bromide, afforded O-propargyl oximes 10a and ...