25854
Compound 15 , a ketophenyl pyrrolopyrimidine urea analog with improved physicochemical properties , demonstrated favorable in vitro attributes as well as dose responsive and robust oral tumor growth inhibition in animal models .
 ketophenyl pyrrolopyrimidine urea
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 ketophenyl pyrrolopyrimidine urea