21180
N - [ 9 - ( ortho - Fluorobenzyl ) - 2 - Phenyl - 8 - Azapurin - 6 - yl ] - Amides as Potent and Selective Ligands for A1 Adenosine Receptors .
 Chemical: N - [ 9 - ( ortho - Fluorobenzyl ) - 2 - Phenyl - 8 - Azapurin - 6 - yl ] - Amides; Chemical: Adenosine
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: N - [ 9 - ( ortho - Fluorobenzyl ) - 2 - Phenyl - 8 - Azapurin - 6 - yl ] - Amides; Chemical: Adenosine