COc1ccc(NC(=O)Cn2c(=O)n(Cc3nc(-c4ccccc4)no3)c(=O)c3cc4c(cc32)OCO4)cc1Cl
Hydrogen bond acceptor: The atom, ion, or molecule component of a hydrogen bond which does not supply the bridging (shared) hydrogen atom. How many hydrogen bond acceptors does the molecule have?