User: I have a question about the chemical with SMILES CCOC(=O)CC(SP(=S)(OC)OC)C(=O)OCC.
Assistant: 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 0
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)CC(SP(=S)(OC)OC)C(=O)OCC
CCOC(=O)CC(SP(=S)(OC)OC)C(=O)OCC
diethyl2-dimethoxyphosphinothioylsulfanylbutanedioate
How many hydrogen bond donors are there in this compound, calculated according to Lipinski's original rules (i.e., counting NH and OH groups)?