User: I have a question about the molecule with SMILES CCOC(=O)[C@@](C)(N)Cc1ccc(O)c(O)c1.Cl.
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: 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#}
CCOC(=O)[C@@](C)(N)Cc1ccc(O)c(O)c1.Cl
CCOC(=O)[C@@](C)(N)Cc1ccc(O)c(O)c1.Cl
ethyl (2S)-2-amino-3-(3,4-dihydroxyphenyl)-2-methylpropanoate;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)?