User: I have a question about the chemical with SMILES CCOC(=O)c1ccc(C#Cc2ccc3c(c2)C(C)(C)CCS3)nc1.
Assistant: Interesting, how can I help?
User: How many rotatable bonds does this compound have?
Assistant: 2
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#}
CCOC(=O)c1ccc(C#Cc2ccc3c(c2)C(C)(C)CCS3)nc1
CCOC(=O)c1ccc(C#Cc2ccc3c(c2)C(C)(C)CCS3)nc1
ethyl 6-[2-(4,4-dimethyl-2,3-dihydrothiochromen-6-yl)ethynyl]pyridine-3-carboxylate
How many rotatable bonds does this compound have?