15431
This compound , although exhibiting modest affinity ( K ( i ) = 2 . 24 mu M ) for the [ ( 3 ) H ] N - methylscopolamine binding site on the M ( 5 ) receptor , is potent ( IC ( 50 ) = 0 . 45 nM ) in inhibiting oxotremorine - evoked [ ( 3 ) H ] DA release from rat striatal slices .
 Chemical: [ ( 3 ) H ] N - methylscopolamine; Chemical: oxotremorine; Chemical: [ ( 3 ) H ] DA
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: [ ( 3 ) H ] N - methylscopolamine; Chemical: oxotremorine; Chemical: [ ( 3 ) H ] DA