1524
N - p - methoxy cinnamoyl serotonin ( 3 ) was converted into its O - demethylated compound , N - p - coumaroyl serotonin ( 2 ) .
 Chemical: N - p - methoxy cinnamoyl serotonin; Chemical: O; Chemical: N - p - coumaroyl serotonin
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: N - p - methoxy cinnamoyl serotonin; Chemical: O; Chemical: N - p - coumaroyl serotonin