22831
Polo - like kinase - 2 ( Plk - 2 ) is a potential therapeutic target for Parkinson ' s disease and this Letter describes the SAR of a series of dihydropteridinone based Plk - 2 inhibitors .
 Chemical: dihydropteridinone
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: dihydropteridinone