User: I have a question about the chemical with SMILES C[C@H](Cn1cnc2c(N)ncnc21)OCP(=O)(O)O.
Assistant: Sure, what is your question?
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: 4
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#}
C[C@H](Cn1cnc2c(N)ncnc21)OCP(=O)(O)O
C[C@H](Cn1cnc2c(N)ncnc21)OCP(=O)(O)O
[(2R)-1-(6-aminopurin-9-yl)propan-2-yl]oxymethylphosphonicacid
How many hydrogen bond donors are there in this compound, calculated according to Lipinski's original rules (i.e., counting NH and OH groups)?
4