CC(C)(C)N/N=C(/Cc1nc2c3c(ccc2nc1O)C(=O)c1ccccc1C3=O)C(=O)NC1=C(Cl)C(=O)c2ccccc2C1=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?