27998
We describe the development of highly potent diaminothiazole inhibitors of CDK2 ( IC50 = 0 . 0009 - 0 . 0015 mu M ) from a single hit compound with weak inhibitory activity ( IC50 = 15 mu M ) , discovered by high - throughput screening .
 diaminothiazole
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 diaminothiazole