COC1/C=C\C=C(/C)C(=O)NC2=CC(=O)C=C(C2=O)C(OC)C(C)CC(OC)C(OC)C(C)/C=C(/C)C1OC(N)=O
Hydrogen bond acceptor is the chemical compound which contains the lone electron pairs that participate in the hydrogen bond formation. How many hydrogen bond acceptors does the molecule contain?