18463
Moreover , a molecular modelling study has been performed on two of the best compounds of this series ( 6i and 6o ) to confirm in silico their interactions with the catalytic site of human platelet PDE3 , using the X - ray data of the PDE3B isoform in complex with an inhibitor .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None