8265
Comparative structural and functional studies of 4 - ( thiazol - 5 - yl ) - 2 - ( phenylamino ) pyrimidine - 5 - carbonitrile CDK9 inhibitors suggest the basis for isotype selectivity .
 Chemical: 4 - ( thiazol - 5 - yl ) - 2 - ( phenylamino ) pyrimidine - 5 - carbonitrile
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
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Answer:
 Chemical: 4 - ( thiazol - 5 - yl ) - 2 - ( phenylamino ) pyrimidine - 5 - carbonitrile