User: I want to know more about the molecule with SMILES O=C1CN=C(c2ccccn2)c2cc(Br)ccc2N1.
Assistant: That sounds interesting, how can I help?
User: How many hydrogen bond acceptors are there in this compound, calculated according to Lipinski's original rules (i.e., counting N and O atoms)?
Assistant: 4
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#}
O=C1CN=C(c2ccccn2)c2cc(Br)ccc2N1
O=C1CN=C(c2ccccn2)c2cc(Br)ccc2N1
7-bromo-5-pyridin-2-yl-1,3-dihydro-1,4-benzodiazepin-2-one
How many hydrogen bond acceptors are there in this compound, calculated according to Lipinski's original rules (i.e., counting N and O atoms)?