534
CPT ( 8 - cyclopentyltheophylline ) - - A1 receptor antagonist , did not show any influence in this test .
 Chemical: CPT; Chemical: 8 - cyclopentyltheophylline
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: CPT; Chemical: 8 - cyclopentyltheophylline