N-Phenyl-N'-[1-[3-(1-aryl-4-piperazinyl)propan-2-ol]]ureas (3) were synthesized from the 3-phenylcarbamoyl-5-[(1-aryl-4-piperazinyl)methyl]-2-iminooxazolidine s (1) via the corresponding 2-oxazolidinones (2). The prepared compounds were screened for their antiallergic and analgesic activities.