3476
Single dose and 7 - day AC administration at 0 . 125mg / kg had no effect on CYP3A activity since no change in the formation of 1 - ( 2 - pyrimidinyl ) piperazine and 6 ' - hydroxybuspirone .
 Chemical: 1 - ( 2 - pyrimidinyl ) piperazine; Chemical: 6 ' - hydroxybuspirone
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: 1 - ( 2 - pyrimidinyl ) piperazine; Chemical: 6 ' - hydroxybuspirone