15875
Optimization of an HTS hit ( 1 ) led to 4 - phenyl - 1 - ( quinuclidin - 3 - ylmethyl ) quinolin - 2 ( 1H ) - one , which was found to be potent and selective .
 Chemical: 4 - phenyl - 1 - ( quinuclidin - 3 - ylmethyl ) quinolin - 2 ( 1H ) - one
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: 4 - phenyl - 1 - ( quinuclidin - 3 - ylmethyl ) quinolin - 2 ( 1H ) - one