10228
Design and synthesis of potent inhibitor of apoptosis ( IAP ) proteins antagonists bearing an octahydropyrrolo [ 1 , 2 - a ] pyrazine scaffold as a novel proline mimetic .
 Chemical: octahydropyrrolo [ 1 , 2 - a ] pyrazine; Chemical: proline
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: octahydropyrrolo [ 1 , 2 - a ] pyrazine; Chemical: proline