Question: How many hydrogen bond acceptors does this compound have?
Constraint: The Compound can be represented with the SMILES CCOC(=O)c1ccc(C#Cc2ccc3c(c2)C(C)(C)CCS3)nc1.
Result: 4
{#Question|Q!}: {quest#}
{#Constraint:|Description:|!} The {#Molecule|Compound|Chemical!} {#has the|can be represented with the!} {SMILES__description} {SMILES#}.
{#Answer|Result|Answer!}: {answ#}
CCOC(=O)c1ccc(C#Cc2ccc3c(c2)C(C)(C)CCS3)nc1
CCOC(=O)c1ccc(C#Cc2ccc3c(c2)C(C)(C)CCS3)nc1
ethyl 6-[2-(4,4-dimethyl-2,3-dihydrothiochromen-6-yl)ethynyl]pyridine-3-carboxylate
How many hydrogen bond acceptors does this compound have?