19192
The corresponding 6 ' - benzyloxy derivatives showed potent MAO - B inhibition and inverted selectivity profile .
 Chemical: 6 ' - benzyloxy
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: 6 ' - benzyloxy