User: I want to know more about the molecule with SMILES Cl.O=C1CN2Cc3c(ccc(Cl)c3Cl)N=C2N1.
Assistant: Interesting, how can I help?
User: How many hydrogen bond donors are there in this compound, calculated according to Lipinski's original rules (i.e., counting NH and OH groups)?
Assistant: The answer is 1
User: I want to know more 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#}
Cl.O=C1CN2Cc3c(ccc(Cl)c3Cl)N=C2N1
Cl.O=C1CN2Cc3c(ccc(Cl)c3Cl)N=C2N1
6,7-dichloro-3,5-dihydro-1H-imidazo[2,1-b]quinazolin-2-one;hydrochloride
How many hydrogen bond donors are there in this compound, calculated according to Lipinski's original rules (i.e., counting NH and OH groups)?