26253
Two series of compounds with hydrazone derivatives ( HZ1 - HZl2 , series 1 ) and oxadiazoline derivatives ( OZ1 - OZ12 , series 2 ) of the 2 - methyl - 5 - nitro - 1H - imidazole scaffold were designed and synthesized .
 Chemical: hydrazone; Chemical: oxadiazoline; Chemical: 2 - methyl - 5 - nitro - 1H - imidazole
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: hydrazone; Chemical: oxadiazoline; Chemical: 2 - methyl - 5 - nitro - 1H - imidazole