title: The synthesis of some pyrazolyl-ureas.
mesh_terms: D008722:Methods; D011720:Pyrazoles / Q000138:chemical synthesis*; D013055:Spectrophotometry, Infrared; D014105:Tosyl Compounds / Q000138:chemical synthesis; D014508:Urea / Q000031:analogs & derivatives* / Q000138:chemical synthesis
chemical_list: D011720:Pyrazoles; D014105:Tosyl Compounds; D014508:Urea