25161
The synthesis of new ribo and 2 ' - beta - C - methyl ribo Janus type nucleosides J - AA , J - AG and J - AU is reported along with their ability to block HCV and HIV replication .
 Chemical: ribo and 2 ' - beta - C - methyl ribo Janus type nucleosides
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: ribo and 2 ' - beta - C - methyl ribo Janus type nucleosides