9042
The 2 , 5 - disubstituted oxazole recently proposed for aspongopusin , a natural product isolated from Aspongopus chinensis , was synthesized through an unambiguous route .
 Chemical: 2 , 5 - disubstituted oxazole; Chemical: aspongopusin
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: 2 , 5 - disubstituted oxazole; Chemical: aspongopusin