User: I have a question about the molecule with SMILES Cc1nccn1CCC(C(N)=O)(c1ccccc1)c1ccccc1.
Assistant: Sure, what is your question?
User: Which USAN substem can this drug or clinical candidate name be matched with?
Assistant: -fenacin
User: I have a question about the {#molecule|chemical|compound!} with {SMILES__description} {SMILES#}.
Assistant: {#Sure, what is your question?|How can I help?|That sounds interesting, how can I help?|Interesting, how can I help?!}
User: {quest#}
Assistant: {#The answer is |!}{answ#}
Cc1nccn1CCC(C(N)=O)(c1ccccc1)c1ccccc1
Cc1nccn1CCC(C(N)=O)(c1ccccc1)c1ccccc1
4-(2-methylimidazol-1-yl)-2,2-diphenylbutanamide
Which USAN substem can this drug or clinical candidate name be matched with?